... ,Ultrahigh frequency,Double frequency) it is appliying forclasses of machine parts to heat treating(quenching,anneal, temper,normalizing..., Through ... heating machine. 2.Fast speed,low power consumption,small volume,light weight,easily used,it also has perfect system of ... is more convenient use. 4.Special cycle cooling system, make sure the machine work 24 hours continuously.For details,please feel ...