... rubber joint flangedSpecification:1, DN32-DN30002, Flange connection3, standard: Flanged DIN/PN, ANSI/ASA, British BS10, SAE 3000, JIS.4,body materials: EPDM, Nitrile/NBR ... -Butyl/IIR, Natural Rubber, Neoprene/Chloroprene, SBR/Buna-S, Gum Rubber,HNBR, ECO/Epichlorohydrin5, PTFE Lined or Viton Expansion Joints for Chemicals & Solvents6 ...