Material quality polyester staple ?? g ?? weight (g / m2) 500 ?? degrees thickness (mm) 2.0 through? Gas? Volume (m3 / m2.min) 15 Breaking Strength (N / 5 × 20cm) by 1130 latitude 1230 Elongation at break (%) by 25 latitude 40 continuous use temperature 120 ℃ temperature instantaneous surface temperature of 130 ℃ treated water repellent and oil processing wet rating (27 temperature, relative humidity 20%) Level 5 AATCC100 features: waterproof anti-oil the effect of porosity, permeability, and high dust collection efficiency, long service life. Acid, alkali moderate, good wear resistance. After heat treatment, the surface is smooth, easily deformed, easy cleaning. Uses: The product is mainly used in mining conditions relative humidity steel, metallurgy, machinery, metallurgy, building materials, chemical, food, pharmaceutical, environmental protection equipment and other industries dust.