-thickness: 0.40mm-0.45mm -endure high temperature: +300�??. Material -made of fire proof fiber glass and silica gel coating. -thickness: 0.40mm-0.45mm -endure high temperature: +450�??. -supported by steel wire and black rubber strip. -sewn with heat resistant thread. Features -soft, fire resistant, wear proof, easy connection -flexible and light weight for easy use and installation. Rolls up for easy transportation and storage. Application Hot air exhaust and supply for smelting, boiler, heat equipment in high temperature environment. -high temperature boiler air exhaust and supply - motor vehicle exhaust emission -factory solder smoke