... . For covered with reinforcing rib.2. feature of double jacket fire hose :1) high pressure resistance2) anti-aging , non-permeable, ... proof, corrosion resistance ,ozone and ultraviolet radiation resistance .3) application : fire fighting car, high official building , mining , water trnsporation and agricultureInner ... -50m3751.6/16/240 4.8/48/72010m-50m41022.0/20/300 6.0/60/90010m-50m double coated ...