Valve Seat

Material: High Chrome Molybdenum Cast Iron Alloy.

             Its the advanced technology introduced from UnitedKidom Institute of 

             internal-combustion engine and the latest formula developed by Shanghai

             internal-combustion engine institute under the actual situation of China.

Function:1)High attrition endurance,

              2)High temperature endurance

              3)High erosion endurance.

              4)Can be used 150--300 thousand kilometre.

REMARKS:The normal valve seat is made by Powder mMllurgy.

                 Just can be used 30--50 thousand-kilometre.

Material: High Phosphor Cast Iron Alloy

             Its developed by Fabbrica Italiana Automobile Company and adopt formula 

             of valve guide from NanJing New Daily Automobile Company.

Function:1)High attrition endurance,

              2)High temperature endurance

              3)High erosion endurance.

              4)Can be used 150--300 thousand-kilometre

REMARKS: The normal valve seat is made by Powder Metallurgy.

                  Just can be used 30--50 thousand-kilometre.