... 3. Quality casting and machining parts. 4. OEM & ODM welcomed. Valve Seat Ring1. Engine parts valve seat ring is used ... for different egines, Automobiles, Marines, Air compressors, Engineering machines engine...etc.Engine Type: ... , VT6-280 etc .2. Wide range size for different bran engine. Cummins, Hino, Mitsubishi, Yamaha, Benz, Deutz, Komatsu, Caterpillar ...