1 : Isolation
  The use of  non woven flap wheel  needle-punched geotextile with different physical properties ( particle size, distribution , consistency and density, etc. ) construction materials ( such as soil and sand, soil and concrete, etc. ) in isolation. Between two or more materials that does not drain , do not mix, keeping the overall structure and function of the material , so that structures containing supporting capacity strengthening .
  2 : Filter
  When the inflow of water from the soil coarse material fines soil , the use of polyester staple fiber needle-punched geotextile good air permeability and water permeability , so that water flows through , while effectively carrying soil particles , sand, small stones , etc., in order to soil and water conservation works stability.
  3: Drainage
  Polyester staple fiber needle-punched geotextile has good conductivity properties , which can be formed within the soil drainage channels within the structure of soil efflux of excess liquids and gases .
  4: Reinforcement
  The use of polyester staple fiber needle-punched geotextile reinforced soil tensile strength and resistance to deformation, enhanced stability of building structures in order to improve soil quality.
  5: Protection
  Water on soil erosion , the effective stress will focus on proliferation, transfer, or decomposition , to prevent soil damage by external force .
  6 : Other
  High tensile strength, permeability, high temperature , anti- freeze, anti- aging , corrosion resistance, no insects .