1.Geomembrane 2.Meet USA ASTM standard and Pass ISO 9001:2004 3.Over 20 years production experience ... adaptability, puncture, aging, ultraviolet radiation, oil and salt, alkali and corrosion resistance,2, high and low temperature resistance, non-toxicity, long ... (for example, anti-seepage, leakage blockage and reinforcement of river, lake and reservoir dikes and banks, anti-seepage of canal, vertical ...