... 3.layers: 4layer or 2 layer concrete pump rubber hoseWe can supply all model rubber hose used in concrete pump Length: 3m 4m,5m layer ... 250barApplication Capacity 20,000cubic metersHode Ends Galvanized or painting Application Pump Truck Schwing , Putzmeister , Kyokuto,etc.Pictures DN125*3000mm concrete pump rubber hose