... 2.material:natural rubber,steel wire 3.layers: 4layer or 2 layer concrete pump rubber hoseWe can supply ... all model rubber hose used in concrete pump Length: ... or 4layer pressure: 85BARProduct details:Name Concrete Pump Rubber hose Size DN125(5"), DN100(4")Length 3000mm,4000mm ... , Kyokuto,etc.Pictures DN125*3000mm concrete pump rubber hose