Tin coatings have been widely used in electronic industry as protective and weldable coatings for electronic components, wires, printed circuit boards and integrated circuit blocks due to their excellent corrosion resistance and weldability.

Tin electroplating line is widely used, tin has the advantages of corrosion resistance, color resistance, non-toxic, easy brazing, soft, low melting point and good ductility, etc., through special pretreatment process, the composite surface formed a solid, bright, dense, uniform, continuous alloy coating.