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