The diameter of the hose is 65mm, the lining material is made of high-quality imported polyurethane (cold and high temperature resistance), uniform thickness, smooth and clean surface, no wrinkles, no water seepage, no mildew, soft, light and easy to roll, aging resistance, small water flow resistance, long service life Standard working pressure ≥ 4.0MPa, burst pressure ≥ 12.0MPa, and the length of each roll is 20 meters,