... MaterialEPDM, SBR, NBR, CR, NRaccording to your requirementMetal MaterialDIN, ASTM, JIS, BS, NF, GBaccording to your requirementCharacteristicOzone resistant,High / Low temperature ... Insulation / Electric conduction / Elasticity / High tensile strengthaccording to your requirementRubber Hardness50A-90Aaccording to your requirement Surface treatment parkerising,Polishing,galvanized, electroplating ...