1.Composite Geomembrane 2.It's a waterproof material composed of geotextile ... , road, airport, drainage, housing, environmental preventing leakage, protection, reinforcement etc.Composite Geomembrane Specifications: ProjectUnit weight g/m24005006007008009001000RemarksThickness of Membrane mm0.25 ... -11~-13K=1.0-9.9Width Variation cm-1.0% Composite Geomembrane