... 4)Application: construction, water conservancy, railway PP/PET needle-punched geotextile details as following:MATERIAL:PP/ PET (Polypropylene/Polyester)1) Weight ... to make farmland, sap projecte5) Functions: compartmentation, filtration, protection, support, drainage, reinforcement APPLICATIONS OF GEOTEXTILES1 FiltrationThe filtration layer of the dykes ... 103)K=1.0-9.9 PP/PET needle punched geotextile