Product Introduction:1. Material: stainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy, red copper, brass, bronze alloy are available.2.Metal processing: stamping, deep drawing , spot or seam welding, spinning, metal assembly are available.3.Surface finish : coating-plating, Zinc plating, enamel, hot-dip, and polishing and so..