... , SPTE, tinplate),Q235 steel, HRB335,304,402,202 steel or as your requirement;2. Processing: cutting, stamping, punching, bending ... coating, chrome plating, zinc plating, mirror polished, silk printing, or as your special requirement;4. Equipment: cutting machine, welding machine ... we have the employees more than 400.Steel Sheet Metal Stamping case/box carbon steel stamping metal joint pallet hinges