... ,steel wire 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: 2 layer ... or 4layer pressure: 85BARProduct details:Name Concrete Pump Rubber hose Size DN125(5"), DN100(4")Length ... Schwing , Putzmeister , Kyokuto,etc.Pictures DN125*3000mm concrete pump rubber hose