... parts, sheet metal parts, and machinery parts.2. Professional support on technical3. Excellent customer service.4. OEM service ... welcomed.5. Material: cold rolled steel,stainless steel,galvanized steel,copper ,brass.6. Equipment: 25-400ton punching machine, CNC machining, ... line, cold punching line. More than 1600 advanced machines for punching, turing, milling, maching, weld, galvanizing, heat ...