Application: all classes of machine parts heat treating Application: all classes of machine parts heattreating(quenching,anneal, temper,normalizing),braze welding, ... , and so on.Example :1.various kind of shaft quenching, depth of quenching1.5-3mm,dia.Φ 10mm-250mm,inside bore ... down 9. copper bar annealing, wire annealing 10. machine tool guideways gear,chain wheel quenching 11.elbow heating tube ...