(1) the anode can be used and the anode should not be removed during stoppage time.

(2) have excellent average plating capacity, and control the deviation of the coating thickness to a minimum.

(3) the coating has good physical properties and is suitable for secondary processing of bending, winding and clamping.

(4) the management scope of bath composition, temperature and battery is wide and easy to manage.

(5) it is easy to be passivated with a passivate without hexavalent chromium, which can be stable and corrosion resistant.