Material quality aramid ?? g ?? weight (g / m2) 500 ?? degrees thickness (mm) 2.2 through? Gas? Volume (m3 / m2.min) 17 Breaking Strength (N / 5 × 20cm) at 800 Wei 1200 Elongation at break (%) by latitude 55 35 200 ℃ temperature continuous use temperature instantaneous temperature 220 ℃ characteristics: good heat resistance, flame resistance and infusible. Good dimensional stability and chemical resistance. Abrasion, folding, and long service life. Uses: The product is mainly used in steel, metallurgy, carbon black, cement, asphalt and other high temperature requirements of the industry.