... Heat treating all classes of machine parts to quenching,anneal 2.Adopts Siemens IGBT,MOSFET Copper induction coil contain four types ... IGBT,MOSFET and any other new type induction heating machine. 2.Fast speed,low power consumption,small volume,light weight,easily ... ,over hot,etc. 3.It has the function of manual,semi-automatic,full-automatic and divide period to control, it is more convenient ...