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perfluoroether rubber ffkm material wholesales O-ring is a round rubber seal, which is usually used in the sealing part of mechanical equipment. Its cross section is circular, so it is also called ring seal. O-ring is usually made of rubber materials, such as nitrile rubber, fluororubber, silicone rubber, etc., with good sealing and wear resistance. Its main function is to prevent liquid or gas leakage and protect the normal operation of mechanical equipment. O-ring is widely used in automotive, aerospace, machinery manufacturing, chemical, medical and other fields. Specification item value Size customized…