... metal washer 3)OEM of Rubber bumper feet 4)Factory Rubber bumper feet Material NBR, NR, EPDM, FKM, SBR, Silicone, Neoprene or Custom ... various kind of polymers like NBR, NR, EPDM, FKM, SBR, Silicone, Neoprene etc. Custom materials available; tell us the ... design team, the main production facilities have vulcanizing machine, rubber mixing machine, grinding machine, mixing machine and cutting machine. ...