... Several material for Oil Seal, Rubber Oil Seal, Rubber Seal, O-Ring,Rubber O-Ring,Rubber Ring Seal and Rubber Gasket like: NBR, HNBR, CR ... , PDFE , EPDM, SILICONE, VITON, etc. Can choose on your requirement; NO.TYPE SizeMaterial1 TC ... *7 NBR10 TC 5*22*7 NBR All kinds of rubber NBR Oil Seal