... offer O-ring, rectangular-ring, rubber gasket, rubber washer and so on.We can make all kinds of rings with ... rubber parts. You can get more information on our website and alibaba. 2) Applications: automobile, motorcycles, agricultural machinery, trucks, ... buses, trailers, heavy duty machine, pump and other equipment.3) Material: NBR, FKM (VITON), MVQ (SILICONE), ...