Flexible duct adopt class B flame retardant PVC with wear-resistant strips wrapped high carbon spring steel is refined, soft cloth, high strength and tear resistance to acid, corrosion resistance, cold-resistant, heat-resisting, waterproof, fire retardant and conducting performance as well.

Conductive ventilation hose at intervals of about 1 meter is equipped with a hand ring, can facilitate the duct fixed in the required position.

flexible duct can retractable, arbitrary bending, connect freedom, light weight, easy to carry.

Environmental protection products is non-toxic, no smell, no dust, no fiber. seamless tube , with no air leakage, wear-resistant, low wind resistance, compressive strength, etc.

The cloth thickness 0.4mm and color is black.

Flexible duct diameter Ф4〃 -Ф59 〃（100mm─1500mm） standard length 5m or 10m, can be available.

Temperature: -15 ℃ to +80 ℃ (cold resistance or high temperature hose optional)

Application :Widely used in these working environment such as tunnel, mining, basement, ship building or welding, laboratory , engine room , the municipal conduit engineering, fire-fighting to ventilate or exhaust waste air, dust to supply fresh air.keep more savely and effectively during working.with the strap or pp rope can conveniently connect to the portable ventilator to use together.