A.Material used: polyester base cloth&polyester original chemical fiber& waterproof &oil repellent assistance. B.Gramage Standard: 500g/m2. C.Working temperature:normal continuous working temperature120 celsius degree,instant highest working temperature 150celsius degree. D.Thickness: 1.8-2.0mm E.Air permeability: (200-350)L/M2/S at 200Pa. F.Breaking strength: (650x750)N/(5X20cm). G.Dimension:with width in 2m,2.05m,2.1m/2.15m and 2.2mfor the biggest, and length in 50m/roll or 100m/roll. H.Packing : In inner polybag& outter woven polybag.