Application: all classes of machine parts heattreating(quenching,anneal, temper,normalizing),braze welding,smelting,copper bar ... machine:frequency from20 to 80KHZ Application: all classes of machine parts heattreating(quenching,anneal, temper,normalizing),braze welding,smelting,copper bar ... end expansion and necking down. High Frequency Induction Heating Machine Group