... annealing; IGBT Intermediate Frequency Induction Heating Machine, Induction Heating Generator, Induction Heating Power(1-20khz) Main features 1.Adopt IGBT ... fittings, such as crankshaft, connection rod, pinton pin, chain wheel, aluminum wheel, valve, rock arm shaft, small shaft and fork. ... parts and machined parts, such as shaft gear (chain wheel) cam, chuck and clamp. Etc.5.Quench for hardware ...