1,limit rubber joint 2, flange connection 3, ISO9001 and CE certificate 4, do OEM limit 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/Buna-N/Perbunan, Hypalon/CSM, Chloro-Butyl/IIR, Natural Rubber, Neoprene/Chloroprene, SBR/Buna-S, Gum Rubber,HNBR, ECO/Epichlorohydrin5, ...