... manufacturer(factory) that produce all kinds of engine valves:motorcycle valves, diesel engine valves ,auto engine valves ,etc. We have exported many ... SUH1(40Cr) ; EXHAUST VALVE IS SUH3(4Cr9Si2). 3. our engine valves are suitable for TOYOTA,AUDI,BESFORD,BMW,CATERILLAR,CUMMINS ... ,DAF,DAIHATSU,DAEWOO,FORD,FIAT,HILLMAN,HINO,HONDA,HYUNDAI,ISUZU,KAWASKI,KIA,LADA,LEYLAND, ...