1.made of fire-retardant pvc material and helix steel wire pvc

2.easily to connect due to flexible

3.enduring the high temperature and oleic acid，

4.Hose body transverse no juncture,Has no air leakage,Wear-resisting,Corrosion resistance, Antistatic, The wind drag small,light-weight，The compressive strength etc advantages;

5.Main color: yellow,red,orange ,white,black,green ect.
Application :Widely used in these working environment such as  tunnel, basement, ship building or welding, laboratory ,air-conditioner,engine 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 together.