silicone O ring 1.Durable in liquid material, mineral oil,lubricant etc 2. High flexibility 3.Resistant to sunlight, ozone silicone O ring1.Material ... :Made of NBR ,Silicone ,FKM ,EPDM ,PTFE etc.2. Application :Widely used in Automobile,Engine ,the ... on .3. We are leading manufacture focus on on profeeional O,U,Y rubber seals .4. Working pressure : ≤0.98MPa5. ...