... :safety voltage controlled Zhengzhou Gou's New Quenching machine tool For Valve, Cylinder Main configuration:1, CNC system control;2, ... Stepper motor drive;3, Ball screw drive;4, Cylinder linear guide rail, ball slider sliding;5, AC variable ... quenching, annealing, tempering, normalizing, quenching and other heat treatment process, but also complete welding, melting, hot assembly, disassembly and ...