... factory) that produce all kinds of engine valves,we have motorcycle valves, diesel engine valves ,auto engine valves and so on. we ... HINO,HONDA,HYUNDAI,ISUZU,KAWASKI,KIA,LADA,LEYLAND,LISTER,MAZDA.BENZ,MITSUBISHI,NISSAN,OPEL,PAYKAN,PERKINS,PEUGEOT,ROVER,SUBARU,SUZUKI, ... -plating , surfacing nitration treatment.Of course , we can produce engine valves according to your samples .5.if you are interested ...