Rubber expansion joint,bellows expansion joints,floating flange end. 1.Single Sphere,DN32-DN1600 2.PN10/PN16/Class125/Class150 Rubber expansion joint,bellows expansion joints,floating flange end.Single Sphere DN32-DN1600 Loose Flange endPN10/PN16/Class125/Class150Main body:Polarized Rubber Lining:Nylon cord fabric Frame:Hardsteel wire Flange:A105 galvanized. bellows expansion joint