... reducer, (coupling)clamp , male and female flange ,rubber hose,sponge rubber ball,wear plate etc. Welcome to contact us for ... 2M,1.6m,all size as to your request5.sponge cleaning ball Material:natural rubber Size:DN100,DN125, ... request rubber piston/gasket:DN 125mm and DN 150mmrubber sponge balls:for all kinds of concrete pump pipefittings7.wear ... DN125 5.5'' Concrete pump sealing rings,Polyurethane seals