waterproof membrane geomembrane waterproof membrane geomembrane1.Feature:Good mechanical properties, high tear strength, ... reservoirs of the substrate, slope protection, green lawn of the waterproof moisture, etc.). 5), petrochemical (chemical plants, oil refineries, ... Pa)≤ 1.0×10 -168-70low-temperature impact embrittlement abilityPass9Black membrane required. carbon content±3 Explanation: GL-1 is for: ...