China Factory free shipping for Silver inlay copper metal stampings
Electrical contacts can be used to welding or riveting. If used to be riveted, the length of the shank should be 0.5mm – 0.8mm higher than the thickness of the riveting part,to ensure the riveting strength.
The function and difference of zinc plating, nickel plating and chrome plating
High precision slitting machine imported from Germany, high precision copper strip slitting