High quality
Exhaust valve seat ring C3968074
The main role of valve seat ring is to seal the valve and withstand high speed impact. Physical and mechanical properties of materials must be considered in material selection. Powder metallurgy materials have the advantages of high dimensional precision, flexible alloy selection and sintering process, and obvious saving of raw materials, working hours and energy. Therefore, compared with other materials, it has obvious competitiveness and has been increasingly widely used in internal combustion engine.
