... the automobile and motorcycle parts 5. Surface quenching of the machine tool guide rail Detail ApplicationA. Quench for various hardware and ... fittings, such as crankshaft, connecting rod, piston pin, chain wheel, aluminum wheel, valve, rock arm shaft, semi drive shaft, small shaft ... metal parts and machined parts, such as shaft, gear (chain wheel), cam, chuck and clamp etc.F. Quench for hardware ...