... unit bias%-8-8-8-8-7-7-7-7-6-6-6 Thickness≥0.91.31.72.12.42.73.03.33 ... ,highway,water conservancy,dam,tunnel,subway.The major functions of Non-woven Geotextile: Separation, filtration, drainage, reinforcement, protection, and liquid barrier ... parameters (GB/T 17638-1998) of Staple Fiber Needle-Punched Non-Woven Geotextile SHD 6mx100m/roll, 250g/m2, PET ...