usage: patent products for textile machine long service life and high rigidity high quality ... 6. Equipment: 25-400ton punching machine, CNC machining, milling, turning, lathe cutting, planning machine, heat treatment machine, varnish baking7. Finish: zinc ... assembly line, cold punching line. More than 1600 advanced machines for punching, turing, milling, maching, weld, galvanizing, heat treatment ...