Rubber Expansion Joint: Size: DN32MM--DN3000MM (1 1/4"--120") Flange: ANSI B16.5, DIN2501, BS4504 Material:EPDM, NBR, NR Rubber Expansion Joint: Size: DN32MM--DN3000MM (1 1/4"--120")Rubber material: EPDM,NBR, NR, NeopreneRubber sphere: Single sphere, Double sphere Flange: ANSI B16.5, DIN2501, BS4504 Flange material: Carbon steelFlange surface: Galvanized Main Material: No.NameMaterial1Outer/inner ...