this corporation has advanced physical and chemical testing equipment, including olympus metallurgical microscope, the leco nitrogen oxygen hydrogen detector, leco carbon and sulfur analyzer as well as advanced direct reading spectrometer, etc. quality inspection center has klingelnberg 1m and 3m gear testers, hexagon 3m tri-ordinate measuring machine. based on these advanced equipment, it possesses rich technical strength and high level of physical and chemical testing ability. after 10 years of development, it possesses a series of physical and chemical testing rules for raw materials, forging, and all processes of heat treatment.