3D Geomat, Composite Drainage Net, Gcl manufacturer / supplier in China, offering 0.5mm-3.0mm Virgin Material ASTM Anti-Seepage Waterproof Impermeable Smooth Textured HDPE Geomembrane for Pond Liner Landfill Mining, Geomembrane HDPE Liner for Waterproofing Geomembrana, 0.5mm/0.75mm/1.0mm/1.5mm/2.0mm ASTM Impermeable Waterproof HDPE Geomembrane for Dam/Landfill/Lake/Biogas/Mining/Fish/Shrimp Farm Pond Liner and so on.