geotextiles can be the filtration layer of the dykes, river canal, seacoast, concrete slope, retaining walls. At the same time of preventing the clay granule from passing, it allows the water and the gas pass through freely. ItemUnitSM160SM180SM200Weight toleranceg/m2160180200Thicknessmm1.41.51.6Break strength ≥KN/m8.09.010.0Break elongation ≥%40 70Tear strength ≥KN0.230.260.28CBR burst strength ≥KN1.51.71.8Carry strength≥KN202325EOSO95mm0.07 0.2Vertical permeability coefficientcm/sK×(101 103),K=1 9.9Widthm4.4