Construction: Inner Tube:�NBR, Black, Smooth. Reinforcement:Fine wire reinforced, Electrically conductive. Cover:Synthetic Rubber. Temperature:-20C to +45C. Feature:Conveying medium: Industrial water, waste water, seawater and irrigation inagriculture. Character: The hose has dual performance that is able to bear positive & negative pressure, it is able to work freely under the vacuum-80kpa(600mm mercury column), without flat& delamination, has good flexural property. The rubber body is flexible, the burst pressure is at least treble than working pressure.