... to work pieces. Detail applications are stated as follows:Quench for various hardware and tools, such as pliers, wrench, hammer ... , ax, screwing tools and shear (orchard shear).Quench for various automobile and motorcycle fittings, such as crankshaft, connection rod ... Welding of various hardware cutting tools, such as diamond tool, abrasive tool, drilling tool, alloy saw blade, hard alloy cutter, ...