... (welding,quenching) with CE and ISO9001:2000 certification. Induction heating equipment(welding) have been exported to many countries ... frequency,Double frequency) Introducing our induction heating equipment predominance as belows: 1.The induction heating equipment mains circuit adopts ... Siemens IGBT,MOSFET and any other new type induction heating machine. 2.Fast speed,low power consumption, ...