... OEM manufacturer 3.No burr, no scratch Item:Steel Sheet Metal Stamping case/boxDescription:1. Material: stainless steel. Iron (SPCC, SECC ... , stamping, punching, bending,welding,deep drawing and Sheet Metal Fabrication;3. Surface treatment: powder coating, chrome plating, zinc plating, mirror polished, silk ... delivery. we have the employees more than 400.Steel Sheet Metal Stamping case/box Steel Sheet ...