... . Excellent customer service.4. OEM service is welcomed.5. Material: cold rolled steel,stainless steel,galvanized steel,copper ... machine, heat treatment machine, varnish baking7. Finish: zinc plated, chromate plated, powder coating etc.8. Part can be supplied according ... line, cold punching line. More than 1600 advanced machines for punching, turing, milling, maching, weld, galvanizing, heat treatment ...