we have successfully developed a new steel valve seat on the basis of original foundry material QZ1-QZ6ZBJ93002-87
Our company relying on military technology Industry 857.based on china's resources situation , meet the national environmental protection requirements----un-leaded gasoline,our new generation Powder metallurgy valve seat have passed the bench test and road testing.matched many petrol engine manufacturers, such as SAIC-GM-Wuling Automobile Co., Ltd,Beijing Foton Automobile Co., Ltd., Mianyang Xinchen Co., Ltd, Xinguang huachen Co., Ltd,Yuchai Machine. Weichai Diesel engine Co., Ltd, Tianjing Perkins , Briggs & Stratton Co., Ltd and so on.
Alloy Casting Valve Seat Insert