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The major functions: Separation, filtration, drainage, reinforcement, protection, and liquid barrier. Thegeotextile can also be heat treated by infrared at customer's requirements. Our geotextile are UV stabilized to give protection against aging under exposure to natural ultra-violet light.Technical parameters (GB/T 17638-1998) of Staple Fiber Needle-Punched Non-Woven Geotextile1.Mass per square meter: 100gsm to 800gsm;2.Thickness: 0.9mm to 5.0mm;3.Tensile Strength: 2.5KN/M to 25.0KN/M;4.Tensile Elongation: 25% to 100%;5.CBR Puncture Strength: 0.3KN to 4.0KN;6.Equivalent Opening Size O90: 0.07mm to 0.20mm;7.Vertical Permeability: K * (10-1~10-3) cm/s K=1.0~9.9;8.Tearing Strength: 0.08KN to 0.60KN;