... HNBR, CR, PTFE, EPDM, etc. Can choose on your requirement.2. Types of Rubber Oil Seal: TC, TB, TA, SC, SB ... DC, dB etc, also can make on your design; 3. Different sizes of Oil Seal, Rubber Oil Seal, Rubber Seal ... , also can make on your request. 4. Optional color for you of the Oil Seal, Rubber Oil ... green, violet etc, can make it on your order; 5. Your OEM order of Oil Seal, Rubber Oil Seal, Rubber ...