... is not Raw red rust 5ISO9001 TS169 sheet metal partSpecifications1metal stamping parts sheet metal part2ISO9001,2008,TS169493Material can be steel, brass ... , deep drawing , spot or seam welding, spinning, metal assembly are available.sheet metal part (3) Surface finish : coating-plating, Zinc ... 4) Equipment: We own stamping machine 14 sets, punch machine 3 sets, welding machine 2 sets, and other ...