... pressure rubber hose Specialized in concrete pump parts and spare parts,like delivery pipe,elbow,coupling,fitting schwing high pressure ... , (coupling)clamp , male and female flange ,rubber hose,cleaning ball,wear plate etc. Welcome to contact us ... 6.rubber items( adopt natural rubber) rubber hose:DN 125mm and DN 150mm ,3 or 4 ... 15m, 18m, 20m, 21m, 24m, 28m hydraulic concrete spreader and manual spreader.