... NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, etc. Can choose on your requirement;2. types of Rubber Oil Seal: TC, TB ... Seal,Rubber Oil Seal,Rubber Seal, also can make on your size.5.Optional color for you of the Oil ... red, yellow, brown, white, green, violet etc, can make it on your order;6. Your OEM order of Oil Seal,Rubber ... us for detailed information. mechanical seal,o ring,double acting piston seal