... to work pieces. Detail applications are stated as follows:1.Quench for various hardware and tools, such as pliers, wrench, hammer ... , ax, screwing tools and shear (orchard shear).2.Quench for various automobile and motorcycle fittings, such as crankshaft, connection ... machine tools, such as lache deck and guide rail. 4.Quench for various hardware metal parts and machined parts, such as ...