Product Name: Explosive Proof Spiral Air Suction Duct Flexible Exhaust Duct Certification: CE Performance: Negative Pressure Shape: Round Application: Ventilation Usage: Marine, Mining, for Firefighting, for Air Conditioner, Industrial, for Environment Protection Material: Plastic Pressure: -1500PA Temp.: 100 Celsius Trademark: Super Transport Package: Neutral Carton Packing Specification: 100mm-1500mm Origin: China HS Code: 841490 Product Description Explosive Proof Spiral Air Suction Duct Flexible Exhaust DuctProduct SpecificationMaterial: Heavy Duty PVC fabric,supported by spiral steel wire and wrapped by tear proof black rubber strip.Temperature range: -20-80°C, high temperature ranges avaialble.Available Size: 100mm- 1500mm, call for custom sizesStandard length: 5/10 Meters, call for custom sizesColors: Orange(Standard), yellow, blue, white, black, blueProduct FeaturesMaterial FeaturesWear & tear proof,acid and alkali resistant, water proof , UV resistant, flexible, light weight for easy carry and operationConnectionRope, buckle, cuff, hose clamp, Zipper, VelcroSuspensionWith hooks along the duct itself for suspensionCertificateFire resistant certified approved by SGSPacking1 duct in a boxProduction CraftHeat weldWire Pitch6cmNegative Pressure-1500PaApplicationSuitable for all confined spaces, such as factory, warehouse, basement, sewer, tunnel, mining, firefighting, welding, painting, cabin, airport, construction, chemical industry.