... & Reliability 5. Self Adapting Frequency induction auto parts hardening machine Heat Treatment like annealing, normalizing, quenching, tempering.1. ... rod, piston pin, chain wheel, aluminum wheel, valve, rock arm shaft, semi drive shaft, small shaft and fork.3 ... monitoring and diagnostics system—"JKZ-PS" device, guarantee the machine of high stability, reliability and security. Strict Supplier ...