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