... costs 2:heating fast 3:small machine 4:easy operation Zheng Zhou Go's CNC Quenching Machine Tool The advantages :1, super audio ... rail is right, and the quenching level is moderate, fast, moving water quenching quenching way up to 400mm / min, quenching into ... double track at the same time.3, the same for machine tool gear, machine tool accessories and other top quenched.4, the sensor connection ...