 Spring telescopic ventilation tube is high strength,durable,scuff resistant,corrosive resistant,fire resistant. It is no-poison, no peculiar smell. Without Dust, No fiber pulverized. Applications: The ducting is lightweight, easily handled and suitable for a wide range of low pressure air, fume and dust removal applications,such as mine; Gas stations, Basement, Municipal pipeline engineering; marine engineering, Oil depot warehouse Available air blower：Portable air blower、marine、mine air blower Working Pressure(W.G): 3000-5000Pa Thickness：Cloth thickness：0.3mm-0.65mm Diameter: 150mm-400mm Length:5m or 10m or do it according to customers’requirements. Available in the following colours: Black,grey,white,blue,red,green,yellow and so on. Operating Temperature Range: -10°+80（℃） |