... are available. Inside Linning Material:PVC/Rubber/TPU Single / Double Jacket Fire Hose with coupling.Fire Hose:1)Nominal Diameter(mm):DN40 DN50 ... 3,1.4,1.63)Hose length(m):15,20,25,304)Inside lining material: Rubber,PVC,TPUThey can be widely ... Petrochemical warehouse ,Agriculture & by work etc. Character: easily rolling, aging resistance, cheaper price.USA coupling:1)Nominal work pressure :1.6MPa2 ...