Composite drainage network (also called Geocomposite Drainage Mat, Drainage Geocomposite, Geocomposite Drainage Layer, Geonet-geotextile Drainage Geocomposite) is available in both single-sided and double-sided products with geonet core thickness from 3mm to 10mm, and geotextile fabric ranging from 100gsm to 300gsm. This drainage network has excellent liquid transmittivity ability. It can be widely used in a lot of drainage applications such as landfill, retaining walls, dams, bridges, industry waste water treatment, foundation and so forth. It can combined usage with other geosynthetic lining products such as hdpe geomembrane sheet, geotextile cloth, geogrid to meeth the engineering projects design requirements for drainage, leak control, separation, reforcement and not limited on these aspects.