美国留学转学对很多没有进入理想的美国大学学习的留学党来说，是冲击理想学校、实现自身梦想的第二次机会。要知道，申请美国留学转学也要提前做好规划。求真教育小编跟各位留学党聊聊，应该怎么准备美国留学转学！

大学转学基本流程

2020年2月-4月：递交美国留学转学申请，务必在学校的截止日前完成网申，需要邮寄的材料也要提前寄出，确保在Deadline前寄到，申请费也别忘了付哦！全部寄出材料后还需常常查收邮件，看看是否学校有新的材料要补充填写和提交，有什么不明白的要及时和学校邮件或电话沟通。

2020年4月-6月：等待Offer。申请多个学校的同学可以等所有offer都收到后，根据学校的学费、奖学金等情况进行选择，并且在学校给出的deadline之前回复是否接受offer。

2020年5月-7月：收到Offer后就可以着手办理学校手续了。学生需要和原校的国际学生办公室说明，把自己的SEVIS号码以及档案转到新学校。

2020年7月-8月：根据个人情况，回国办理新的学生签证。准备开学事宜。

2020年9月：开学！

提前规划

决定转学前，要先了解清楚目标学校的标准跟要求，不要盲目，特别要注意学校对转入学分和课程的要求。

首先要先选好学校，建议选择适合自己的学校。之后确定好自己的时间规划，不同的学校申请开放、截止的时间都不同。所以要先选择好学校和专业，可以有针对性地安排时间，比如给学校发信询问具体什么时间开始招生，申请截止时间是什么时候等。

另外，学分总数和课程要求要有所了解。学分总数的要求、多少分可以转学、多少学分免考SAT。不同的专业可以转的学分不相同，尤其是跨专业转学的学生，学分即使满了30分也有可能要考SAT，而且不同课程的比例越多，审核的周期也越长。这些要求在各个学校的申请要求中都会列出来。

因此定校之后，一定要确认学校官网上的课程学分和录取要求。这样做可以让你腾出更多时间准备托福考试，让不满足的条件的学生可以提早准备SAT。

美国留学转学申请资料

转学材料需要在截止日期的前4个月开始准备。如果是申请加州大学系统，那学生在暑假期间就应该开始准备材料了。这些材料主要包括：大学GPA成绩单、推荐信、个人陈述、个人简历和标准化考试成绩等，再根据不同学校不同专业的具体要求提供相关材料。

GPA非常重要！美国大学非常在意申请者在目前学校的GPA和排名。好一些的大学将3.0以上的GPA当作门槛，3.5以上的GPA对于转学到前30名的学校更有保障，一些竞争热度高的专业，例如计算机科学、电子工程、土木工程等，需要更高的GPA。建议现在还不知道自己GPA多少分的同学进入WES官网注册一个账号，算一下成绩单上的平均分转化成美国GPA是多少，做到心中有数。

标化考试中托福和SAT这两项是大一转学生要准备的，一般TOP50的大学对于托福的要求都不一样。很多学生单纯地复习但是没有进度和变化，原因出在策略和方法上，量够了但是分提不上去，这时候不能坐以待毙，要尽快找专业机构像求真教育咨询问题所在。尽快掌握正确高效的复习方法，在12月之前考出有效的标化成绩。

申请文书方面也需要下比较大的功夫。简历一般涵盖学术表现、工作经历、社会活动、社区服务、技能等五个部分，高质量地填充这几项内容能提高录取几率。同样，优秀的短文和个人陈述在美国留学转学的录取中起着举足轻重的作用，学校需要从你的文章中看到你的激情和你的梦想，对你进一步的了解，所以短文和个人陈述的技巧是极高的。在写作时，一定要仔细省题，换个角度想想为何招生官想知道这些信息，进而巧妙地回答。如果感觉到困难，不妨咨询留学专家求真教育，专业地道的文书团队能为你提供很大的帮助。

求真寄语

转学需要注意的事情非常多，很多人会在查找资料阶段就有放弃的念头，但又不甘于现状。只有行动起来，梦想才有成真的可能。如果你认为你自己无法同时专注于在校GPA、标准化成绩考试、充实简历等等多方面事情，留学专家求真教育可以为你提供最专业、最贴心的服务。求真教育拥有多年美国留学转学、学术规划辅导经验，助你轻松踏入美国名校。

文章来源：https://indeededu.com

美本申请

学生：S同学

高中：国内普通高中

GPA：90+/100

TOEFL：80+

ACT：25

录取学校：加州大学欧文分校等

S同学是国内某普通高中的学生，在10月中旬找到了求真教育想要进行美本申请。当时他的托福只有60多分，并且没有什么大型学术奖项和课外活动。申请老师立刻在脑子里构思了对S同学的申请规划，什么时候应该考出标化成绩，什么时候应该开始美本申请等等。通过和他的沟通，申请老师发现虽然他暂时还没有什么特别突出的长处，但是S同学是个很认真努力的人，所以心里暗暗地对他抱有一定的期望。

求真助力

经过和S同学的深入接触，求真教育的老师发现他在国内高中表现十分不错，且课外活动中有持续性较较久的项目。于是文书老师从这一点入手，将文字材料做的非常细致，把学生的信息高度提炼并梳理成一个完整的故事，文书的立意也和普通学生不尽相同，将“生与死”这个高中生不太涉及主题融入了主文书，凸显了学生的与众不同。

与此同时，S同学在一心准备标化成绩，终于在11月份，托福考出了80+分，ACT考出了25的成绩，相较于之前的硬性条件有了很大的提升。但由于学生和老师都寄希望于加州系统的申请，这样的综合条件并没有给我们树立太大的信心，于是老师们更加专注于课外活动的构思和文书的润色上。在除加州大学外的学校选择上，申请老师也经过层层筛选，选择出了最符合S同学条件的学校名单。

最终，S同学在来年三月份收到来自宾州州立大学帕克主校区的录取。学生非常的激动，微信上连连说“爆炸了”，并且专门打电话给申请老师问是不是真的录取了，当得到肯定的答案后，学生和家长都频频感谢老师的辛勤付出。后来我们又陆续收到加州大学欧文分校，俄亥俄州立大学等其他大学的录取，这样的结果所有人都非常满意。

求真寄语

很多学生找到求真教育想做美本申请的时候，都还没有合适的标化成绩和清晰的申请思路。我们凭借多年的申请经验和丰富的学生案例，对每一位学生都能快速和精准地定位，找到最适合他们的申请之路，并且在各方面给予最专业的帮助。在这里，求真教育也想要祝S同学的留学之旅一切顺利！

文章来源：https://indeededu.com

美国留学申请

美国留学申请 怎么做，你有详细的时间规划吗？虽说留学申请季明年9月份才正式开始，但准备工作必须得提前开展。收下这份详细合理的美国留学申请时间规划表，各位准留学党就能不慌不忙把名校offer揽入怀中。

美国留学申请 规划早，入读名校阻碍少

1月-3月

1. 选择学校：选校需谨慎，我们要考虑很多因素，比如地点、学费、声誉、规模、多样性等。最重要的，当然还有学校和专业排名，这方面同学们可以参考U.S. News和QS发布的美国大学排行，如果你拿不定主意，可以来咨询留学专家求真教育。

2. 标准化考试：美国留学申请的必备条件之一就是标化成绩，一般包括雅思（现在大多数美国大学都认可雅思成绩）/托福、SAT、SATII；申请研究生则需要提交托福、GRE（对申请理工科学生而言）或者GMAT成绩（对申请商科学生而言），具体要根据申请的学校和专业来定。取得理想的标化成绩是取得名校offer的重要一步。求真小编在此温馨提示：一定要提早规划，提前报名。

4月-6月

3. 自我提高：准备美国留学申请时，GPA成绩也是一个比较重要的环节，所以在校期间同学们要尽可能提高自己的GPA成绩。如果自己的标化考试成绩不理想，也可以在这段时间刷分。

另外，想要后期文书内容丰富，增强个人软性实力也十分关键。个人软实力的增强则依靠活动的规划。活动类型包括社团类、科研类、竞赛类、实习等等，能持续性、层次性地锻炼个人的综合能力。求真小编提醒：背景活动要注重质量和深度，而不是一味追求数量。

7月-8月

4.证明材料准备：对于申请美国本科生的同学来说，一般需要提供高中的成绩单。而申请研究生的同学则需要提交本科四年的成绩单。需要注意的是，部分院校的研究生项目还会要求申请者提供相应实习证明。材料准备是一个繁杂的过程，这个过程中肯定会遇到这样那样的问题。求真团队可以协助同学们进行资料准备，保证资料的完整和及时。

5.文书创作：需要准备的文书主要包括个人简历、个人陈述、小论文和推荐信。个人简历要有很强的针对性，需要能体现申请人的需要和申请目的。根据不同的美国大学要求，申请者需要提供1-5篇不等的个人陈述，推荐信则一般需要2-3封。

小编建议：最好5月份就开始文书构思，7月份前就沟通确认好至少2个学校推荐人，为7、8月专心写个人陈述和小论文留出足够时间。文书是同学们向招生官展示个人软实力的重要途径。优秀的申请文书能给招生官留下深刻的印象，增加录取成功率。求真专业团队可以提供全程一对一指导，拒绝流水线文书创作，为同学们打造最完美的文书。

9月-第二年2月

6.正式开始申请：9月正式进入美国留学申请季。要注意的是，不同学校的申请截止日期都有所不同，即使是同一所学校不同专业的也会不一样。同学们应密切关注目标院校的截止日期，切勿错过了申请时机。

另外，有一些网申小贴士要告诉大家：有固定统一截止日期的美国院校一般都是在截止日期之后才进行材料审核，即是说，无论提交早晚，都不会影响录取几率的。但一些院校的截止日期是分轮次的，比如哈佛的MBA截止日期就分3轮：第一轮9月9号，第二轮1月6号，第三轮4月4号。通常，第一轮的录取率最高。因此，建议同学们第一轮就提交申请。

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第二年3月-5月

7.后续工作：提交网申后，同学们可能会收到部分学校的面试通知，因此一定要时常跟进申请状态，避免错失面试机会。小编在这里提醒申请者要尽早进行模拟面试练习，提高自己的通过率。另外，可以及时向学校更新自己的标化成绩。如果一直没有收到院校的通知消息，同学们要及时发邮件询问院校自己的录取结果。

8.获得录取通知：如果同时收到多所院校的录取通知，同学们应该多方衡量后选择最适合自己的院校。

第二年6月-7月

9.签证申请：赴美留学需要先获得F-1签证。签证流程包括准备签证材料、预约签证。美国教育机构会给每位收到offer的F-1签证申请人提供申请签证所需的批准文件I-20。一定要核对文件上的信息是否正确，如果有误就要及时联系学校进行修改。

10.入学待办事项：录取院校的学生后台一般会给出一份新生入学的待办事项清单，同学们及时查阅学生邮箱，获取清单。要认真阅读清单，在截止日期前完成上面的内容。一般来说，入学待办事项会包括寄送原校成绩单、完成疫苗要求、提交经济保单证明等等。

一切就绪，同学们只要收拾好自己的行囊和心情就可以漂洋过海，开始自己的留学生活！

求真寄语

一场留学，一次抉择，一生改变。小编希望这份详细的时间规划表能对各位准留学党有所帮助。求真教育自2007年成立以来，已经帮助超过五千名学子实现留学名校梦。从前期咨询到后期申请，求真教育提供最贴心的一站式服务，助你取得名校offer。

Characteristics and Principle of Tamper-proof Unsealing Bag

The utility model discloses a tamper evident, unsealing packaging bag, which includes a rectangular transparent plastic bag body. Both sides of the plastic bag body are sealed by two heat sealing tapes. A letter band is set between the two heat-sealing bands on each side. The mouth of the plastictamper evident bag body is sealed by a non-transparent adhesive layer, and a letter-shaped pattern block is provided in the adhesive layer which can be peeled off when torn. Due to the use of double heat-sealing tapes on both sides of the packaging bag, there is a row of unsealed letter tape between the two heat-sealing tapes. When the outermost heat-sealing tape is cut, the packaging bag cannot be opened. When the second heat-sealing tape is cut, the letter tape is destroyed, and the seal can be seen at a glance. In addition, when the mouth of the tamper evident bag is strongly torn, the character-shaped pattern block of the adhesive layer is stuck by the bag body on one side, and the word is displayed after tearing. Even if the bag mouth is re-attached, it cannot be completely restored. The utility model is easy to find after being unsealed, and has good anti-unsealing properties.

It is characterized in that the bag mouth of the plastic bag body is provided with a thermochromic strip.

As one of the security packaging tape suppliers, our company has shown its worth in this very competitive sector due to theefforts and rigorous inputs from the professionals who have contributed immensely to its growth. These people have a very vast knowledge of the market trends and scenario allowing them gets reliable link-ups with vendors for us. Also, we have some of the best-qualified quality and packaging experts, who have taken responsibility to ensure we make zero-defect products as well as safe and on-timedelivery of the packaging materials.

Lifting sub is an above ground tool for lifting drilling tools.It resembles a pup joint, and is used to thread the upper connection of the drill string to make the drill string can be tripped in/out by elevator.

Application:

Drill collar lifting sub is one kind of special tool used in oil, gas and exploration drilling operations. There are two kinds: A type, 18 degree shoulder and B type, 90 degree shoulder. You can select according to structure type of elevators. The connections confirm to API standards.

They are one-piece construction and manufactured from 4145M or 4140HT alloy steel.

Technical Specification:

Saigao Group specializing in design, research and development, processing and manufacturing, sales and export of machinery equipment, with leading products comprising various kind of mud pumps, down-hole motors, any kinds of screen pipes, cementing tools as well as any kinds of wellhead equipment. Just contact us!

Anti bird netting are mainly used to protect fruit and vegetable against from butterflies, birds, pigeons, rabbits, squirrels ,other similar pests and bird block neting .The Bird Netting can easily be fixed on beds, trees, bushes ，and can be used for several seasons.

There are different types of anti bird netting. The different types of anti-bird netting come in different mesh sizes. It is important to choose the correct mesh size for your particular bird issue. It is critical that birds are unable to get past the netting and get trapped behind the netting or stuck in the netting. The larger the bird, the larger the mesh size used.

The color is usually three kinds of black green and white; our anti bird net is made up of 100% virgin materials of polypropylene and Polyethylene ,UV treated, it can have longer life in the outdoors.

1. heavy duty bird netting that is a knotted polyethylene

The anti insect netting is made up of six monofilaments with each strand 0.0012 thick and twisted together to create a strong twine with 160-200 twists per meter. It is ideal in large areas where pest birds are a problem such as warehouse, canopies, airplane hangars and other overhangs.

2.Knitted anti bird netting,It is diamond mesh

3.Extruded bird netting ,made up of virgin black PP material , it is diamond and square 3/4 inch mesh，can be cut to any size. It washes clean and folds for easy, compact storage.Meyabond as a prefessional Anti bird netting suppliers have cheap bird netting,if you want to buy it,we can provide cheap bird netting for sale.

Features

Longer Life-UV resistance, easy installation and light weight.

Easy to install practical and secure, extremely durable net which lasts for years.

Application

In the public and private sectors,  bird netting is necessary, since it can be applied in different areas such as:

Protection of orchards, vegetable crops and macro tunnels.

Protection of constructions, warehouses, buildings.

Protection of churches, ancient monuments.

Aquaculture protection.

Meyabond Industry & Trading (Beijing) Co.,Ltd. is located in Babaoshan South Road, Shijingshan District, Beijing, China.It is an exporter plastic net manufacturer in accordance with ISO 9001 Quality Standard.

What is ASTM A53?

ASTM A53 is a carbon steel alloy which is used in structural steel or  low-pressure plumbing. ASTM International set by the alloy specifications including the specification of ASTM A53/A53M.

ASTM A53 Steel Pipe

ASTM A53 steel pipe is a standard specification for black and hot-dipped, zinc-coated, welded and seamless steel pipe, and is for mechanical and pressure applications as well as for steam, water, gas and air piping in general use. ASTM A53 can be formed and welded. Specify the correct pipe size using the nominal pipe size (NPS). This is the nominal pipe diameter for specified wall thickness (i.e., 4 inch Schedule 40 pipe). ASTM A53 grade b erw pipe is determined according to the nominal pipe size (NPS) system. It is usually available with national pipe thread ends or with plain cut ends. It can be used for the transportation of steam, water, and air. It is also weldable and can be used in structural applications, although A53b steel pipe tub, which is available in the same NPS sizes, is sometimes can be the first choice.

Executive standard: ASTM A53 welded steel pipe for low-pressure fluid transportation ASTM A53 straight seam electric welded steel pipe" Q/HBTC 001-2016 "welded steel pipe"   

Scope of application: conveying low-pressure fluids such as water, air, heating steam and gas; structural use such as machinery and construction.

This article was originally published on Better.com

By Kurtis Rhee

Most homebuyers consider dozens of houses before finding the perfect one, but that’s not the case when it comes to picking a real estate agent. Seven out of every ten homebuyers don’t interview their agent before deciding to work with them.¹ That’s pretty scary considering not all agents are created are equal — as the industry saying goes, 20 percent of the agents do 80 percent of the business. If your real estate agent could make the difference between landing your dream home in a few weeks or losing bids, why wouldn’t you shop around?

Finding an agent who is both good at their job and easy to work with isn’t always simple. That’s why we suggest interviewing at least a couple of real estate agents before picking “the one”. Here are some guidelines for how to decide which agent is a good fit for you.

1. Experience

With markets getting more and more competitive, you want a real estate agent with a proven track record of putting people in their dream homes. Read online reviews, talk to past clients, and most importantly, ask if the agent has recently closed on properties similar to what you’re looking for. Pay special attention to their history with homes in the location and price range you are considering.

2. Expertise

Working with someone who is familiar with your desired area helps to ensure that you’ll only spend time and energy on houses that fit your criteria. First, decide on the factors you want to prioritize in your neighborhood search (schools, walkability, nightlife, etc.), and then, go through them with your prospective agent to get a feel for their local knowledge.

3. Empathy

Ultimately, you want to make sure your agent is someone you are comfortable working with. The house hunt can sometimes take months, especially in competitive markets. Working with an agent who shares your communication style can help make the journey enjoyable rather than stressful. Spend some time thinking about the type of person who you’ll be able to work well with. Do you want someone who is patient and will guide you through the process? Or do you want someone who works fast and is straight to the point? (Your answer will probably be different depending on whether or not you’re a first-time homebuyer or familiar with the area.)

Need help finding the right real estate agent? While there is no obligation to use our suggested agents, we can help you save time and energy by introducing you to one who has been vetted by our team. Every agent we suggest has a strong track record of success. Schedule a free consultation to learn more.

Tamper evident bags have become a common security measure in many food and beverage products to prevent contamination and spillage and maintain the integrity of the finished product. Tamper-resistant seals, rings and pouches ensure the quality and freshness of the product, and provide manufacturers with a degree of security. The complete tampering technology in the tamper evident bag conveys the safety and reliability of the finished product, but production errors may occur during the final sealing stage of the primary packaging, affecting the safety seal. The normal wear and tear of production machines makes it almost impossible to make 100% defect-free products, so quality control and inspection processes are essential to prevent these products from leaving the production line and entering the market.

After checking the product's fill level and placement of the lid, the vision system checks the seal to verify the integrity of the seal, and specifically verifies that tamper resistant bags and security seals are used. For bottles with safety rings, the vision system verifies that the rings have not been lifted and have been properly twisted.

A vision inspection system with pattern matching technology quickly locates and verifies the integrity of tamper-resistant seals for accurate and repeatable inspections. Detect edges of security seals and measure their height, width, relative position, and gap size, and compare them with set limits. Tamper-resistant seal dimensions that do not meet the programmed limits will be rejected.

As one of the tamper evident tape suppliers, our company has shown its worth in this very competitive sector due to theefforts and rigorous inputs from the professionals who have contributed immensely to its growth. These people have a very vast knowledge of the market trends and scenario allowing them gets reliable link-ups with vendors for us. Also, we have some of the best-qualified quality and packaging experts, who have taken responsibility to ensure we make zero-defect products as well as safe and on-timedelivery of the packaging materials.

The liner hanger assembly is a special cementing tool for tieback operation.

Tieback equipment allows existing liners with a receptacle to be extended to the surface or farther up hole, and provides a high-pressure seal at the top of a cemented or uncemented liner. TIW offers variety of tieback seal nipples and tieback packers to accommodate liner top extension and remedial operations.

Tieback Procedures of Hydraulic Liner Hanger Tie-Back Assembly

1. Preparation before casing

Measure and drift the casings carefully and clean all the threads.

Calculate the kelly-up of the casing (the particular part of the last casing which is above the rotary table) and arrange the casing string.

Prepare several casings, which are approximately 0.5m shorter than the others and convenient for kelly-up calibration. (The actual kelly-up is not equal to the calculated value due to measurement error and the remaining threads of the casings.)

1. Polishing the polished bore receptacle

Connect the milling shoe and trip in. Polish the inner surface of the polished bore receptacle, make sure there is no debris.

Note the depth of the milling shoe when it reaches the top of the seal assembly (judge from the changes on pressure and WOB). Then lift the drill string for 1m.

Use a drilling rate of 40～50rpm and a normal flow rate. Slowly lower the drill string. Polish the inner surface of the polished bore receptacle twice or three times. Each time polish 3～4min. During the last polishing, apply an additional load of 2～3t when the torque suddenly increases (the milling shoe reaches the top of the seal assembly) during the last polishing. Polish for another 2~3min and note the depth of the milling shoe, which is an important clue for the casing setting depth.

Circulate with high flow rate for 5min.

Trip out and check the milling shoe. If there is a circle of polished trace and the diameter is equal to the I.D. of the left thread on the seal assembly, then the milling shoe have reached the bottom of the polished bore receptacle.

Features of Hydraulic Liner Hanger Tie-Back Assembly

With the guide shoe and circulate bore, it can stab into polished bore receptacle before cementing, more convenient than conventional cementing which pumps down cement before stabbing.

With its streamline shape, the guide shoe can stab into polished bore receptacle easily.

The Tieback Seal Assembly with three stacks of molyglass seal is designed for high-pressure and high-temperature liner tieback completions. Available in seal length is 1.2m.

Technical Parameters of Hydraulic Liner Hanger Tie-Back Assembly

Saigao Group specializing in design, research and development, processing and manufacturing, sales and export of machinery equipment, with leading products comprising various kind of mud pumps, down-hole motors, any kinds of screen pipes, cementing tools as well as any kinds of wellhead equipment. Just contact us!

ASTM A500 Steel Pipe

ASTM A500 is the standard specification for circular, square, and rectangular tubes of cold-formed welded and seamless carbon steel structures. ASTM A500 is the most common specification for Hollow Structural Sections in North America. The correct way to specify the circular HSS section is to represent the outer diameter in decimal inches to three decimal places (i.e., 5.563 x 0.250) according to the nominal wall thickness.

Why A500 Steel Pipe?

Since ASTM A500 is a structural specification, circular high-speed steel produced according to this specification is suitable for structural applications and general construction purposes. ASTM A53 is a pipe specification for mechanical and pressure applications.

The specified yield strength of  A500 Grade b Pipe(the most commonly available grade) is 46 ksi.  The specified yield strength of A53 Grade B is 35 ksi.  Yield strength increased by more than 30%.  Therefore, the strength to weight ratio of A500 circular HSS is greater than that of A53 pipe. So, if you do the job with round HSS, you need less steel, by weight, to do the job—the lighter it is, the lower the cost.

The tolerances of A500 are tighter than those of A53, so the HSS of the A500 circle has higher quality and less variability.

Round HSS has a superior surface finish and is not as lacquered as normal A53 tubes.  Since this lacquer coating needs to be removed from the A53 pipe to accommodate welding and painting, so this can save money and time.

A53 pipe is available in standard pipe sizes only.  Round HSS is available in various sizes and wall thicknesses. Just look at the 14th edition of the AISC Steel Construction Manual and see how many pages there are of circular HSS with A53 tubes.

Last but not the least, the ASTM A53 Specification requires testing (i.e., pressure testing) for structural applications. This additional testing adds unnecessary additional costs.

Astm A500 Grade C Pipe Applications

All steel structures have their pros and cons including tructural supports, building columns, highway signs, oil field services and communication towers, to name a few. But ultimately ASTM A500 is a better choice when you need a round profile.

We encourage architects, fabricators, structural engineers and contractors to read up on ASTM A500 and visit The Steel Tube Institute's website because it offers a wide variety of technical publications, load tables and design aids.

In its fight against counterfeit and inferior medicines, the EU responded with the anti-counterfeiting directive 2011/62 / EU. As of February 9, 2019, with few exceptions, prescription drugs can only be marketed with a security label and serial number. For pharmaceutical companies, implementing the EU Directive is a difficult task. According to the estimates of pharmaceutical manufacturers, the cost of implementing each EU pharmaceutical production line is hundreds of thousands of Euros.

Tamper Evident Label on Tamper Evident Bag

In order to be able to continue using the existing tamper evident bag, the use of tamper-resistant labels is an interesting option from a cost-effective point of view. Dedicated tamper-resistant labels have reliable packaging integrity, quality and safety guarantees. In addition to monitoring measures, this tamper-resistant label also means protection for consumers when buying medicines. At present, the materials used for tamper evident labels on tamper evident bags are usually some special materials, such as the so-called "fragile labels". The materials used for fragile labels are almost completely broken in every attempt to open. Or the so-called "Void Unmask" tag leaves irreversible handwriting when trying to unpack it. And these special materials have their own different shortcomings and shortcomings in the high-speed pharmaceutical production line, which means that a large amount of additional financial expenditure is required.

Label glue is the decisive factor

From an economic and technical point of view, the most reasonable labels are conventional rectangular or circular labels. What plays a decisive role in these labels is their pressure-sensitive adhesive. The heat-sensitive adhesive must have good water resistance and good resistance to hot air and various thinners. Only by possessing these properties can we guarantee that the label will not be easily peeled off from the colorful folding box without damaging the label itself or leaving visible signs of disassembly on the pill box. There is a pressure-sensitive adhesive R & D department dedicated to meeting various challenges. The pressure-sensitive adhesive developed and produced by this department can be used on various tamper evident bag surfaces. ZHANJIANG FENGQI PLASTIC PRODUCT CO., LTD not only develops and produces sealed labels, but also provides labeling machines for integration into packaging production lines.

As one of the packing list envelopes manufacturers, our company has shown its worth in this very competitive sector due to theefforts and rigorous inputs from the professionals who have contributed immensely to its growth. These people have a very vast knowledge of the market trends and scenario allowing them gets reliable link-ups with vendors for us. Also, we have some of the best-qualified quality and packaging experts, who have taken responsibility to ensure we make zero-defect products as well as safe and on-timedelivery of the packaging materials.

Hydraulic Liner Hanger Polished Bore Receptacle Mated with tie-back assembly, it can tieback the liner to the top of well and act as efficiency sealing. The polished bore receptacle (PRB) is a highly machined component with a polished bore.

Features of polished bore receptacle liner hanger

High quality surface finish on the inner seal bore for optimum sealing property.

The top end is chamfered for easy entry.

Manufactured to strict roundness and wall thickness tolerances, giving optimum burst and collapse pressure ratings.

Technical Parameters of Hydraulic Liner Hanger Polished Bore Receptacle

Saigao Group specializing in design, research and development, processing and manufacturing, sales and export of machinery equipment, with leading products comprising various kind of mud pumps, down-hole motors, any kinds of screen pipes, cementing tools as well as any kinds of wellhead equipment. Just contact us!

It seems that most modern people do not go to physical stores to buy goods. They choose online shopping. Because more information about product types can be found only by searching in the Internet and more options in terms of price can be chosen, it has promoted the prevalence of online shopping. Because of this, the courier has a lot of boxes to deal with every day. Sometimes some goods will inevitably be squeezed. If you want to solve this troublesome thing, the security bag must be used.

What is a security bag?

In fact, after the security bag has been improved by various production techniques, its equipment operation speed and production efficiency have been greatly improved. In addition, it can be found that the production of security bags has also added some automated procedures in colleges and universities, which has avoided some errors caused by human operations. At this time, it can bring more high-quality products to merchants, so we need to understand some of its uses.

Basic uses and advantages of security bags

1. Anti-counterfeiting function

The most important function item of the security bag is its anti-counterfeiting effect. For a long time, all kinds of sealed bags have been in a basically suitable process. It is basically impossible to achieve related control and real-time tracking. Assuming that the product is repackaged or theft occurs during transportation, the interests of merchants and consumers will be directly damaged in the end. At this time, if the security bag can be used, then there is no need to worry about such problems.

2. Multiple protection

The development of security bags to this stage has basically used PE waterproof materials. This material has many advantages after a series of special treatments and steps. For example, it can easily be waterproof and impervious. In the process of transportation, if it is because of various unexpected external factors that affect the goods, it will definitely harm the interests of consumers and the express delivery company. However, the multiple protection of the safety deposit bag can enable the items to be protected with high quality during transportation.

3. Good sealing

Because of the material of this bag, it is definitely not easy to be damaged during transportation. After all, the bags are made together with a variety of chemical materials, so basically no damage will occur during the transfer process. The outside of the bag will be fixed with tape after being affixed, so it will not drop during transportation. In addition, the airtightness of the bag will be many times better than those of the previous express without using the bag, which can better protect the items purchased by the customer.

In fact, in addition to the above functions and uses, the security bag also has features, of course, it also has other advantages. For example, the sealing performance of the multilayer structure is particularly good. In addition, it also has an oil film protective layer, so it can achieve the purpose of waterproofing. In addition, its anti-counterfeiting characteristics are also unique, so its security performance is good. Its technology is powerful, and it has a unique feature that cannot be copied, so many businesses are willing to adopt it.

As one of the tamper proof bags manufacturers, our company has shown its worth in this very competitive sector due to theefforts and rigorous inputs from the professionals who have contributed immensely to its growth. These people have a very vast knowledge of the market trends and scenario allowing them gets reliable link-ups with vendors for us. Also, we have some of the best-qualified quality and packaging experts, who have taken responsibility to ensure we make zero-defect products as well as safe and on-timedelivery of the packaging materials.

With the development of technology, teachers have gradually discovered that the possibility of paper sealed bags being copied is too great. Therefore, the anti-counterfeit sealed security bag has become a test paper sealed bag favored by the school. A security bag, as the name suggests, is a bag with protection features. From this we can probably guess that the security bag of the test paper has the function of protecting the contents of the package from being exchanged and maintaining its uniqueness!

Its secret protection of objects is mainly reflected in the use of anti-counterfeiting technology.

The main anti-counterfeiting has the following types:

1. Self-adhesive sealing——Remove the reserved words

It uses a self-adhesive anti-counterfeiting seal, which has strong adhesion. Glue can withstand high and low temperatures, and it is not easy to be opened illegally. Once the security anti-counterfeiting tape is opened and the reserved words are opened, the anti-counterfeiting characters, characters and patterns will appear.

2. Temperature-changeable ink——Multiple anti-counterfeiting

The temperature-changeable ink anti-counterfeiting part will turn red when it encounters external high temperature up to 65 ° C, and cannot be recovered. In addition, when the ink encounters water, the ink will be dissolved by the water.

3. Unique barcode——Easy query

Each bag can be printed with a unique serial number and barcode. The unique bar code is easy to tear, used to track products and stubs, and can track goods by ticket number.

In addition to the application of anti-counterfeiting technology, items can be protected from being exchanged before being opened. In addition, the bag has the functions of anti-breakage and strong adhesion to protect the internal items from being damaged.

Anti-breakage: High-mild material can prevent tearing and scratching, easy to fill, and seal quickly.

Strong tackiness: The self-adhesive anti-counterfeiting seal has strong tackiness, the glue can withstand high and low temperature, and it is not easy to be opened illegally.

Waterproof / liquid-resistant: It uses high-grade PE / PO material, and the surface layer effectively prevents water droplets and liquid penetration.

As one of the security packaging tape suppliers, our company has shown its worth in this very competitive sector due to theefforts and rigorous inputs from the professionals who have contributed immensely to its growth. These people have a very vast knowledge of the market trends and scenario allowing them gets reliable link-ups with vendors for us. Also, we have some of the best-qualified quality and packaging experts, who have taken responsibility to ensure we make zero-defect products as well as safe and on-timedelivery of the packaging materials.

BW series three cylinder reciprocating pump is widely used in mining, drilling, coal, railway, highway, water conservancy and hydropower,bridges, high-rise buildings, foundation reinforcement work.

Advanced product design,reasonable structure,high pressure,flow,multi-file variable, energy saving, light volume, efficiency, plant life, sage operation, easy maintenance.

The BW-160/10 grouting pump consists of pump head, pump body, clutch, protective cover, belt and power drive, frame, air chamber and pressure gauge device, water filter and other components. The power generated by the electric motor is transmitted to the pump body through the belt and the clutch, and becomes a linear reciprocating motion of the piston through the rotary motion of the crankshaft connecting rod, thereby controlling the opening and closing of the steel ball in the pump head to perform the suction and discharge work.

The pump head is the main component of the grouting pump. It consists of three single-acting hydraulic cylinders connected in parallel with a common suction and discharge chamber. The components on both sides of the suction and discharge chambers can be replaced as needed.

The pump body is the main component of the power end of the grouting pump. The main function is to realize the shifting and power transmission of the mud pump, the gear shifting mechanism, the crankshaft linkage mechanism, the piston, the crosshead, etc., which can convert the rotary motion of the crankshaft into the straight line of the piston. Reciprocating motion.

The clutch is a device for engaging or separating the power of the grouting pump, or when the power is not stopped and the mud pump needs to be operated at a shifting or no-loading, the clutch disengagement can be realized. When the mud pump is overloaded, the friction plate can be used to protect the pump from overload. The engagement or disengagement of the clutch is controlled by the clutch handle, the handle is disengaged from the clutch, and the handle is engaged downward.

Features of BW160/10 Horizontal Three Cylinder Reciprocating Single Acting Piston Pump:

BW-160/10 mud pump can be used for geological core drilling, chemical liquid transportation, mine drainage and soft foundation grouting;

With four different flow rates and pressures, the range of variation is large, and the scope of application is wide;

Compact structure, light weight, small size and beautiful appearance, which can be driven by hydraulic motor, motor and diesel engine;

Standardization of parts and components, high degree of generalization, convenient maintenance and operation;

Consumable parts have long service life and high reliability.

Saigao Group specializing in design, research and development, processing and manufacturing, sales and export of machinery equipment, with leading products comprising various kind of mud pumps, down-hole motors, any kinds of screen pipes, cementing tools as well as any kinds of wellhead equipment. Just contact us!

Ordinary bubble bags are common bubble bags, which are mainly used for packaging products to prevent collisions between products. At present, bubble bags are mainly used for postal packaging of products. Pink anti-static bubble bag with shock-absorbing bubble film. There are countless small bubbles in the bubble film, so it is light and flexible, and has the functions of sound insulation, shock resistance, and scratch resistance. Bubble film is widely used in shock-resistant cushioning, protective packaging in electronics, meters, ceramics, crafts, household appliances, auto dealers, kitchens, furniture, hardware tools, glass products and precision instruments.

Customized Kraft Bubble Bags:

Material: Kraft paper / PE;

Structure: outer layer is kraft paper (white, yellow), lined with bubble film;

Function: the surface is flat and easy to write; different patterns, trademarks and words can be printed according to customer requirements without infringing on the intellectual property rights of others; it has buffering and anti-vibration to prevent items from being damaged by pressure, bumps and drops; It does not use any adhesive between the layers of material, completely non-toxic and environmentally friendly; it has a self-adhesive strip design for the envelope mouth, which is safe and convenient;

Recommended use: mailing discs, magnetic tapes, electronic components, integrated circuit boards, optical lenses, books, documents, photo frames, gifts, clocks and other items.

The kinds of Kraft paper bubble bags

1. Golden kraft paper bubble bag is also called yellow kraft paper bubble bag.
2. The color of natural kraft paper bubble bag is kraft tone.
3. White kraft paper compound bubble bag.

Application and advantages of kraft paper compound bubble film envelope bag: The outer layer of kraft paper compound bubble envelope bag is kraft paper, and the inner layer is lined with air bubbles. It is tough and shockproof for better protection. Its interior is buffered with bubbles, which is easy to package and has a beautiful appearance.

There are also aluminized film bubble envelopes, composite film bubble envelopes, co-extruded film bubble envelopes and so on. The pearl film bubble envelope is a commonly used material with a smooth surface. Compared with ordinary express bags, bubble envelopes have a layer of bubble film, which plays a role of shock protection.

As one of the tamper evident tape suppliers, our company has shown its worth in this very competitive sector due to theefforts and rigorous inputs from the professionals who have contributed immensely to its growth. These people have a very vast knowledge of the market trends and scenario allowing them gets reliable link-ups with vendors for us. Also, we have some of the best-qualified quality and packaging experts, who have taken responsibility to ensure we make zero-defect products as well as safe and on-timedelivery of the packaging materials.

The fracturing tree is a wellhead equipment used to direct and control oil & gas from the well. It is an assembly of valves, spools, and fittings used for an oil well, gas well, water injection well, water disposal well, gas injection well, condensate well, and other types of wells. Christmas trees supplied by Finemade are used in oil exploration and production in surface. Christmas trees on surface wells are also known as surface trees, as they connect to the wellhead that is visible on the surface of a well.

Features of Fracturing Tree:

It is input into fracturing head through several fracturing manifold. It is input into fracturing gate valve to perform fracturing production. It controls medium access through fracturing gate valve switch. Now, the fracturing tree manufactured by Douson has maximum drift of 7-1/16"and maximum pressure of 20000psi. The main part of our fracturing is fracturing valve which has acquired patent for national invention and patent for utility model. Fracturing technology adopted by Douson is internationally advanced technology.

Application of frac tree:

After the oil well production reaches a certain stage, the production capacity and permeability are reduced. In order to enhance the oil discharge capacity and increase the oil well production, people have invented the fracturing technology. The fracturing method is divided into two types: hydraulic fracturing and high-energy gas fracturing. Hydraulic fracturing is to inject high-speed fluid into the well by the high-pressure pump trucks on the ground. The high pressure of the bottom of the well is used to break the cracks in the reservoir rock. In order to prevent the pump from stopping, the pressure drops and the cracks close themselves. In the injected liquid after the rupture of the formation, the sand is mixed with the sand several times larger than the density of the formation, and enters the crack together with the fluid, and stays in the crack forever. The crack is open, which improves the oil flow environment for a long time. The current hydraulic fracturing technology is very mature, and the oil well stimulation effect is obvious, and it has already become the common technology that people prefer. Especially for the oil flow channel is very small, that is, the oil layer with a lower permeability has a particularly strong effect.

Technical Specifications of frac tree wellhead:

Main Drift: 4-1/16"、5-1/16"、7-1/16"

Working Pressure:10000psi、15000psi、20000psi

Temperature Level: KU

Material Class: AA、BB、CC、DD、EE、FF、HH

Specification Level: PSL1~PSL4

Performance Level: PR1~PR2

Saigao Group specializing in design, research and development, processing and manufacturing, sales and export of machinery equipment, with leading products comprising various kind of mud pumps, down-hole motors, any kinds of screen pipes, cementing tools as well as any kinds of wellhead equipment. Just contact us!

In recent years, due to the crazy development of the e-commerce industry, a series of industries have also been driven by the crazy development. I believe that the moment that friends who like online shopping most enjoy is the moment of unpacking. For some products purchased online, bubble bags can be said to be the best packaging method. For example, the digital products, clothing, porcelain, and products with bottles and cans that we usually use are packed in bubble bags. But with the continuous maturity of bubble bag packaging industry, bubble bags are divided into many sub-areas.

Ordinary transparent bubble bag is our most commonly used bubble bag. When this bubble bag is still a bubble film, you can directly use transparent bubble films with a width of 1 meter, 1.2 meters, 1.4 meters and more to pack things. It's simple, convenient and fast. And you can use this bubble film to produce a simple flat pocket to hold many small things.

The characteristics of ordinary bubble bags have good shock absorption, light weight, good transparency, and elasticity. It has sound insulation, shock resistance, abrasion resistance and impact resistance. It is non-toxic, odorless, moisture-proof, and corrosion-resistant.

Arch extruded film bubble bag is one of the most used in the express delivery industry. The arched film bubble bag can be said to be born specifically for the express delivery industry. Its bag samples can be divided into flat pockets, envelope bags and so on. Its hue is mainly divided into natural colors, yellow (taurus) colors, and white. It can print a variety of shades on the surface. It mainly plays the role of anti-shock, waterproof, anti-pressure and so on. All of these features are designed from the point of view of the express delivery industry.

The pearl film bubble mailers is actually similar to the arched film bubble bag, and these two bags are different in terms of production materials, and their functions are basically the same. In our opinion, the only difference is that one is higher-end and the other is more ordinary.

FENGQI provides best bubble mailers, welcome to consult.

As one of the packing list envelopes manufacturers, our company has shown its worth in this very competitive sector due to theefforts and rigorous inputs from the professionals who have contributed immensely to its growth. These people have a very vast knowledge of the market trends and scenario allowing them gets reliable link-ups with vendors for us. Also, we have some of the best-qualified quality and packaging experts, who have taken responsibility to ensure we make zero-defect products as well as safe and on-timedelivery of the packaging materials.