... SILICONE, VITON,HNBR, CR, PTFE, EPDM, etc. Can choose on your requirement;2. types of Rubber Oil Seal: TC, TB ... KC, KB, KA, DC, DB etc, also can make on your demand;3. Different sizes of Oil Seal,Rubber Oil ... Seal,Rubber Seal, also can make on your size.4.Optional color for you of the ... brown, white, green, violet etc, can make it on your order;5. Your OEM order of Oil Seal,Rubber Oil Seal ...