... 80KHZ Application: all classes of machine parts heattreating(quenching,anneal, temper,normalizing),braze welding,smelting,copper bar annealing,bar copper ... heating before forging, and so on. Type of machine: XG-18 ... down 9. copper bar annealing, wire annealing 10. machine tool guideways gear,chain wheel quenching 11.elbow heating tube ...