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,alloy, ... wending,stamping,welding,threading,drilling, grinding, coating,assembling and so on. Surface treatmentaccording to customer's demands, ...