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 applications de drainage telles que les décharges, les murs de soutènement, les barrages, les ponts, le traitement des eaux usées industrielles, les fondations, etc. It can combined usage with other geosynthetic lining products such as Feuille de géomembrane en PEHD, toile géotextile, Géogrilleto meeth the engineering projects design requirements for drainage, leak control, separation, reforcement and not limited on these aspects.