... ,Silicone FKM,ETC OEM/Customized specification are welcome FKM oil seal rubber oil seal and rubber seal1. Material: NBR, Silicone, viton, HNBR ... , CR, PTFE, EPDM, etc can choose on your requirement.2. types of rubber oil seal ... your size.4. Optional color for you of Oil seal Rubber oil seal, Rubber seal, Rubber Gasket, O-ring: RED, GREEN , ...