... temper,normalizing),braze welding,smelting,copper bar High frequency induction heating machine:frequency from20 to 80KHZ Application: all classes ... controlled, Φ60mm-Φ100mm bar stock through heating 5.chain,chain wheel heat treatment 6.Dia.Φ3m,weight 80ton gear ... 10. machine tool guideways gear,chain wheel quenching 11.elbow heating tube end expansion and necking down. High Frequency Induction ...