... brass.6. Equipment: 25-400ton punching machine, CNC machining, milling, turning, lathe cutting, planning machine, heat treatment machine ... , varnish baking7. Finish: zinc plated, chromate plated, powder coating etc.8. Part ... , cold punching line. More than 1600 advanced machines for punching, turing, milling, maching, weld, galvanizing, ...