... & Reliability 5. Self Adapting Frequency induction auto parts hardening machine Heat Treatment like annealing, normalizing, quenching, tempering.1. ... , 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 Management ...