Air rubber hose / water rubber hose Inner layer: 1.Material:nr/sbr/br/nbr/epdm 2. Feature:air tightness and good resistance to buckling, smoothing, anti-bending, antil-elongating and anti-aging Framework: employing fine fabric (canvas) or chemical fabric cloth. Outer layer: 1.Material: nr/sbr/br/nbr/epdm 2. Feature:the tube body is light, anti-bending of aging, ozone resistance, toughness and wear resistance visual effect is good Good packing.