Rubber diaphragm 1.Certificate: ISO9001:2008 2.Different sizes are available 3.Material: EPDM, NBR, NR, CR, etc Product NameRubber diaphragmCertificateISO9001:2008Country of OriginChinaAdvantagea. Ozone and chemical resistanceb. High temperature resistancec. Excellent weather resistanced. Anti-aging, anti-radiation, good flexibility, good elasticitye. Excellent resistance of acids, aliphatic ...