... QTY accepted 3.Material:steel,S.S,brass,et metal stamping/metal sheet stamping 1. Material:Carbon steel,stainless steel,copper , ... , powder coating,etc3.Machine:Stamping machines,automatic stamping machine,punching machines,Oil Hydraulic pressing machines,bending machines,welding machines, lathes ... Medicine part, machine part, building part, household hardware, etc metal stamping/metal sheet stamping