... motorcycle fittings, such as crankshaft, connection rod, pinton pin, chain wheel, aluminum wheel, valve, rock arm shaft, small shaft and fork. Various ... metal parts and machined parts, such as shaft gear (chain wheel) cam, chuck and clamp. Etc.5.Quench for hardware molds ... small size mold, mold accessory and inner hole of mold Welding (brazes welding, silver soldering and brazing) It’s mainly aims to ...