1, Stamped / stretched 2, Stainless steel, galvanized steel, aluminum, brass 3, Zinc plating, chroming plating, anodization 1, Single die stamp / stretch2, CNC stamping, punch, press3, Progressive stamping, punch, die press4, Stainless steel, galvanized steel, aluminum, brass5, Zinc plating, chroming plating, anodization Stamped/stretched metal part