Introduction of products
1.mouth of a horn flexible duct and sprial steel wire duct.

Detailed introduction
1.  Made of fire-retardant PVC material and helix steel wire
2.  The both ends with the black sleeve and the buckle
3.   Easily to connect due to flexible
4.  Enduring the high temperature and oleic acid
5.  Acid & alkali resistant and corrosion resistant and fire resistant
6.  Schlep easily wherever exhaust and inhalation the air in the field condition due to light weight
7.  Prevent the workers from the suffocating by improving dust air into fresh air.

Application :
Widely used in these working environment such as  tunnel, basement, ship building or welding,laboratory,air-conditioner,enginer-room,the municipal conduct 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