Metallurgical Processes: Hardening, Austempering, Carburizing, Carbonitriding, Normalizing, Annealing, Stress Relieving, etc. Types of Products: 1) Widely used for the mechanical parts of automobile fittings, fasteners, chains, bearings and tools, etc. to reach the continous heat treatment operations. It includes automatic laoding, carburizing (or carbonitriding), quenching, washing, termpering, ...