... 0.1mm China manufacture Sheet-Metal processing product Professional metal-Sheet Parts processing Item Name sheet metal processing parts Manufacture ... Punching, Threading, Welding, Tapping, Riveting, Grinding, CNC machining Surface treatment Polishing, Anodize, Zinc/Nickel plating ,Powder coating, Sandblast ... ,STP,X-T) 1.Material : all kinds of sheet metal ,such as steel ,ss, al,cu,galvanized ...