... etc 2. High flexibility 3.Resistant to sunlight, ozone silicone O ring1.Material :Made of NBR ,Silicone ,FKM ,EPDM ,PTFE etc ... on .3. We are leading manufacture focus on on profeeional O,U,Y rubber seals .4. Working pressure : ≤0.98MPa5. Working ... quotation and production , we will reply you very soon . silicone O ring