... -rings:O-Ring is used as static and dynamic seals for a wide range of fluids.More 4,000 ... -Ring is good at both in static seal and dynamic seal, main material contains: NBR,SR,VITON,SILICON ... also can make on your size. 5. Optional color for you of the oil seal, O-Ring and rubber ... O-Ring , rubber gasket is welcomed as well. 7. Apply for: Auto, air condition, machinery, water pumps, valves, furniture, ...