... % duty cycle design 3.Quick heating Henan soldering machine for sale Company Brief Introdution:ZhengZhou GuoYun Electronics Thchnology Co.,Ltd ... from 16KW to 500KW,quenching machine tool and special complete quenching machine.used for forging,rolling,brazing,hardening,annealing, ... along2,compared with other forms of heating ,this machine can significantly improve the economic effect and working effect3 ...