... (40Cr) ; EXHAUST VALVE IS SUH3(4Cr9Si2). 3. our engine valves are suitable for TOYOTA,AUDI,BESFORD,BMW,CATERILLAR,CUMMINS,DAF,DAIHATSU,DAEWOO ... , small soldering alloy, shaft chromium-plating , surfacing nitration treatment.Of course , we can produce engine valves according to your samples . Engine valve for RAMBLER ...