... 1.46 years of experience in metal processing, especially in stamping parts, sheet metal parts, and machinery parts.2. ... steel,galvanized steel,copper ,brass.6. Equipment: 25-400ton punching machine, CNC machining, milling, turning, lathe cutting, planning ... professional mould development, assembly line, cold punching line. More than 1600 advanced machines for punching, turing, milling, maching, weld, ...