Stamping part 1.material including iron,steel, stainless steel,copper,aluminumetc 2.accurate in reading ... , metal props. Materialcarbon steel,galvanized steel sheet,iron,stainless steel,galvanized iron,copper, brass,aluminum,alloy steel,tinplate and other metals, ... stamping,welding,threading,drilling, grinding, coating,assembling and so on. Surface treatmentaccording to customer's demands, such ...