... press with the help of punch press, forging machine or other equipments, such as hot extrusion of ... fittings, such as crankshaft, connecting rod, piston pin, chain wheel, aluminum wheel, valve, rock arm shaft, semi ... , such as gear and axes.4. Quench for machine tools, such as lathe deck and guide rail5. ... parts and machined parts, such as shaft, gear (chain wheel), cam, chuck and clamp etc.6. Quench ...