Smooth surface,strong anti-abrasion,good air permeability,high strength, and remarkable filtration effect,etc TS-PP840-1 Material: polypropylene Warp: Multifilament Weft: Multifilament Model No.Breaking Strength(N/5x20 cm)Breaking Elongation(%) Thickness(mm) Weight(g/m2) Air Permeability(200P)(L/m2*s)WarpWeftWarpWeft TS-PP840-1 4431.6 4007.8 47.3 27.55 0.88 450 30.67