... passed ISO 9001 and ISO/TS 16949. 2. our engine valve kind is complete ,the quality is frist-class, the price ... ,BESFORD,BMW,CATERILLAR,CUMMINS,DAF,DAIHATSU,DAEWOO,FORD,FIAT,HILLMAN,HINO,HONDA,HYUNDAI,ISUZU,KAWASKI,KIA,LADA,LEYLAND,LISTER,MAZDA,BENZ ... ,VOLKSWAGEN AND SO ON. 4. We have all kinds of valve techniques, entire material valves, double mttal friction welding , small soldering ...