... 3.No burr, no scratch Item:Steel Sheet Metal Stamping case/boxDescription:1. Material: stainless steel. Iron (SPCC, SECC, SPTE, ... tinplate),Q235 steel, HRB335,304,402,202 steel or as your requirement;2. Processing: cutting, stamping, punching, bending,welding,deep ... delivery. we have the employees more than 400.Steel Sheet Metal Stamping case/box Steel Sheet Metal Stamping case/box