... 5:safety voltage controlled Zhengzhou Gou's New Quenching machine tool For Valve, Cylinder Main configuration:1, CNC system control;2 ... sliding;5, AC variable speed motor drive sprocket chain, the light bar to rotate the workpiece;6, AC gear motor drive screw, screw ... .Gou's New Quenching machine tool has many advantages, such as: 1) no overall heating of the workpiece,it can be selectively ...