... 4. High Quality & Reliability 5. Self Adapting Frequency tools hardening induction quenching 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 ... , small shaft and fork.3. Electric tools, such as gear and axes.4. Machine tools, such as lathe deck and guide ...