Inlet & exhaust valve 1.Cummins engine valve 2.OE quality with competitive price ... that produce all kinds of engine valves,we have motorcycle valves, diesel engine valves ,auto engine valves and so on. ... ISO 9001 and ISO/TS 16949. 2. our engine valve kind is complete ,the quality is frist-class ... ; EXHAUST VALVE IS SUH3(4Cr9Si2). 3. our engine valves are suitable for TOYOTA,AUDI,BESFORD,BMW,CATERILLAR, ...