... pieces. Detail applications are stated as follows:1. Quenching for various hardware and tools, such as plier, wrench, hammer ... ax, screwing tools and shear (orchard shear).2. Quenching for various automobile and motorcycle fittings, such as crankshaft, connecting rod ... hard alloy cutter, milling cutter, reamer, planning tool and solid center bit.2. Welding of various hardware mechanical parts: Silver ...