Materials: carbon steel, stainless steel, aluminum, brass, aluminum alloy. Metal Stamping, 1) Materials: carbon steel, stainless steel, aluminum, brass, aluminum alloy. 2) High precision metal stamping 3) Finish treatment: Surface treatment: Chrome-plating, Nickel-plating, Silver-plating, Gold-plating, Sand blasting, Lacquering, Silkscreening, etc.4) OEM orders are welcomed.5) Good quality and ...