... and motorcycle parts 5. Surface quenching of the machine tool guide rail Detail Application:A. Quench for various hardware and tools, such ... fittings, such as crankshaft, connecting rod, piston pin, chain wheel, aluminum wheel, valve, rock arm shaft, semi drive shaft, small shaft ... . Quench for machine tools, such as lathe deck and guide railE. Quench for various hardware metal parts and machined parts ...