... % duty cycle design 3.Quick heating Henan soldering machine for sale Company Brief Introdution:ZhengZhou GuoYun Electronics Thchnology Co ... power from 16KW to 500KW,quenching machine tool and special complete quenching machine.used for forging,rolling,brazing,hardening,annealing, ... per yearAdvantages1,small and simple design ,it is easy to take along2,compared with other forms of heating ,this machine ...