... duty cycle design 3.Quick heating Henan soldering machine for sale Company Brief Introdution:ZhengZhou GuoYun Electronics Thchnology ... power from 16KW to 500KW,quenching machine tool and special complete quenching machine.used for forging,rolling,brazing,hardening,annealing,hardening ... along2,compared with other forms of heating ,this machine can significantly improve the economic effect and working ...