... -120,XG-160,XG-200,XG-250,XG-300,XG-400,XG-500. Example :1.various kind of shaft quenching, depth ... .Φ1016mm,depth 17.5mm steel tube1000 degree centigrade heating bending. 8.steel tube heating necking down 9. copper bar annealing, wire annealing ... . machine tool guideways gear,chain wheel quenching 11.elbow heating tube end expansion and necking down. High Frequency Induction Heating Machine ...