... Brand or OEM packing Valve role is responsible for input to the engine fuel and emissions We are the professional manufacturer ... SUH1(40Cr) ; EXHAUST VALVE IS SUH3(4Cr9Si2). Engine valves are suitable for TOYOTA,AUDI,BESFORD,BMW,CATERILLAR,CUMMINS,DAF,DAIHATSU,DAEWOO ... ,FORD,FIAT,HILLMAN,HINO,HONDA,HYUNDAI,ISUZU,KAWASKI,KIA ...