... check the information as below, and contack us:): Rubber MaterialEPDM, SBR, NBR, CR, NRaccording to your ... requirementRubber Hardness50A-90Aaccording to your requirement Surface treatment parkerising,Polishing,galvanized, electroplating, spraying, and painting and zinc ... parts, suspension parts (leaf spring bushings, arm bushings, rubber buffers, strut shock mounts, bimetal bushings, etc.), engine ...