... ,CR,,FKM,etc. 2) Good function of preventing dust 3) OEM welcome auto dust guard:product all kinds of dust guard: 1. Material: NBR, SILICONE ... , VITON,HNBR, CR, PTFE, EPDM, etc. Can choose on your requirement;2. types of Rubber ... We promise the high quality but competitive price of Oil Seal,Rubber Oil Seal, dust guard,O-Ring, polyurethane sieve tray,Rubber ...