... rough-machining of fittings of automobile,hydraulic machinery,generating equipment,fitting for petrochemical industry,engineering machinery,metallurgical machinery ... induction heating , 100 pieces of ma-chining equipment,over ten pieces of heat treatment well ... Heave Duty Automobile Company, John DierTiantuo Company,Jinan Generating Equipment Piant, Qilu petrochemical Group, Xuzhou IndustryGroup, Jinan ...