Bellows expansion joints Rubber expansion joints NR , NBR, Neoprene, EPDM, DN25-2500MM PN10, PN16 Bellows expansion jointsComes in a variety of different compounds, which ... include Butyl, Neoprene, Nitrile, Natural, EPDM, Viton, and FEP. Joints can ... steps, or customized to specific requirements Bellows expansion joints