PCB copper -covered copper -covering plate is a plate -shaped material made of glass fiber cloth or other enhanced materials with a resin or double -sided on the
resin or double -sided copper foil.Taking glass fiber cloth bases as an example, the main raw materials are copper foil, glass fiber cloth, and epoxy resin, which
account for about 32%,29% and 26%of the cost of product.

If the PCB Sinking Gold Circuit Circuit Gold and Copper are directly contacted with the physical response (the relationship between the difference in the difference
in the difference in the potential), so the “nickel” must be placed as the barrier layer, and then the gold is placed on the top of the nickel, so we generally call
electroplating, and the actual name should be called “electroplating gold”