... Heat treating all classes of machine parts to quenching,anneal 2.Adopts Siemens IGBT,MOSFET Copper induction coil contain four types ... Double frequency) it is appliying forclasses of machine parts to heat treating(quenching,anneal, temper,normalizing..., Through heating,braze ... adopts Siemens IGBT,MOSFET and any other new type induction heating machine. 2.Fast speed,low power consumption,small volume ...