1.Composite Geomembrane 2.It's a waterproof material ... has good flexibility. Apart from geotextile’s isolation, drainage, reinforced, protective functions, it also has closed (impermeable) function. ... , drainage, housing, environmental preventing leakage, protection, reinforcement etc.Composite Geomembrane Specifications: ProjectUnit weight g/m24005006007008009001000RemarksThickness of Membrane mm0.25 ...