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The PCB on the computer consists of a motherboard, a hard disk, a memory module, a graphics card, and the like. The plane of the computer motherboard is a PCB (printed circuit board), generally four or six layers. Relatively speaking, in order to…
Electroplating can be divided into hard gold and soft gold. Hard gold electroplating is an alloy, so its hardness is relatively hard. It is suitable for use in places requiring force and friction. It is generally used as the edge contact point of…
About Me
Gender
Male
Location
Shenzhen
Birthday:
January 22
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