... ,NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, etc. Can choose on your requirement;2. types: TC, TB, TA, SC, SB, SA ... Oil Seal,Rubber Oil Seal,Rubber Seal, also can make on your size.5.Optional color for you of the Oil Seal,Rubber ... :Black, red, yellow, brown, white, green, violet etc, can make it on your order;6. Apply for: Auto, motorcycle, machinery, water pumps ...