Hardware plating process, which has several metal products generally plating process can be described by the following: racking → ​​degreasing, washing → rust, washing → activation, plating washing → ​​→ washing → ​​drying → ​​test → packing. Which electroplating, common are: zinc, copper, nickel, gold, silver, tin, rhodium, palladium and alloy plating. Plating may be single, or multi-layer plating. Plating Type: Single metal plating (as described above), alloy plating, composite plating, chemical plating. Vacuum coating, sputter ion plating, also known as a lot of people. Like aluminum oxide, black / blue chemical polishing, electrochemical polishing and passivation, also referred to as electroplating category.