High temperature duct, high-temperature vent pipe for welding exhaust gas extraction, air conditioning and ventilation equipment; room, basement, tunnel, municipal pipeline engineering, machinery, shipbuilding engineering, mining, ventilation, fire, smoke and other poor working environment, to sendwind and exhaust, set in addition to dust, high temperature and ventilation.The high temperature duct, high-temperature vent pipe anti-acid and alkali, good chemical resistance and easy to carry, and resistance to oleic acid and flame-retardant; any bend radius is approximately equal to the outer diameter, can be electro-static discharge, spiral wire grounding;Temperature range: -40 degrees to +400 degrees;