... .Identification: ISO9002 / QS9000 3.Brand or OEM packing Engine valves Valve role is responsible for input to the engine fuel and ... in terms of durability and performance. Able to withstand high dynamic load, our products can perform well at high temperature and ... ,VOLVO,VOLKSWAGEN AND SO ON.We have all kinds of valve techniques, entire material valves, double mttal friction welding , small soldering ...