Shandong WeiChai Industry&Trade Co., Ltd. We are specialized in manufactur and exporter in heavy truck auto parts . Our company is the largest auto parts wholesaler and manufactuer in our pronvince. Our factory located in Jinan China.As a specialized wholesaler in Complete Heavy Duty Trucks, ex. Steyr, Steyr King, Howo, Oman and all its Components and parts .Our products include :flywheel, piston , turbochargergearbox, water pump, cylinder, crankshaft, camshaft, intake value, exhaust value, clutch