This flame retardant spiral skeleton mine air duct is supported by built-in steel wire frame, keeping the duct round and smooth under working pressure. It features excellent flame retardancy, anti-static property, high air tightness and good flexibility.
Lightweight and easy for transportation, installation and connection. It is widely applied in coal mines, metal mines and tunnel engineering for air supply and exhaust ventilation. Custom diameters and lengths are available.
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