... Quality & Reliability 5. Self Adapting Frequency induction auto parts hardening machine Heat Treatment like annealing, normalizing, quenching, tempering. ... 1. Hardware and tools, such as plier, wrench, hammer, ax, screwing tools and shear ... (orchard shear).2. Automobile and motorcycle fittings, such as crankshaft, connecting rod, piston pin, chain wheel, aluminum ...