Engine Valve 1.Truck engine valve for 4Cr/10Si2Mo/SNCrW 21-12N 2.Identification: ISO9002 / QS9000 3. ... Brand or OEM packing Engine valvesValve role is responsible for input to the engine fuel and emissions. Owing to our ... at high temperature and corrosive environment. Engine valves are suitable for TOYOTA,AUDI,BESFORD,BMW,CATERILLAR,CUMMINS,DAF,DAIHATSU,DAEWOO,FORD ...