Rubber Oil Seal, 1. Material: NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, ACM ,FKM,etc. 2. types :TC, TB, TA, SC, SB, SA ... , Rubber Oil Seal, 1. Material: NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, ACM ,FKM,etc. 2. types :TC, TB, TA, SC, SB ... Oil Seal,1. Material: NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, ACM ,FKM,etc. Can choose on your requirement;2. types of ...