... joint 2, flange connection 3, ISO9001 and CE certificate 4, do OEM limit rubber joint flangedSpecification:1, DN32-DN30002, Flange connection3, standard ... , general presure:DN32-DN400:2.5MPa.DN350-DN600:1.6MPa,DN700-DN1200:1.0MPa,DN1400:0.6MPa,DN1600-DN1800:0.4MPa,flange ...