Shanghai Niuzhang Auto Engine Parts Co., Ltd is a company integrating manufacture and Trade. We have more than 20 years experience in this line. Our main products cover Cylinder Head, Cylinder Block, Crankshaft, Camshaft, Connecting Rod, Cylinder Liner, Piston & Pin, Piston Ring, Engine Bearing, Series of Vale Seat, Valve Guide, oil Pumps, water pumps etc. Most of them pass the approval of ISO9001, ISO14000, ISO/TS16949:2002 and CE. Our products has been exported to more than 30 countries from North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East,...