Fire-Retardant Flexible Ventilation Air Hose Tubing Pipe Duct for Mine Coal Tunnel Temporary Air Flow

Fire-Retardant Flexible Ventilation Air Hose Tubing Pipe Duct for Mine Coal Tunnel Temporary Air Flow. Wide Diameter Range: Available from 200mm to 3200mm with customizable options. Flame Retardant Certified: Meets EN 13501-1, NFPA 701, and GB 8624 safety standards. High Tensile Strength: Composite material offers 3200N/5cm strength with anti-static options. Eco-Friendly Material: Made of PVC composite polyester fiber, non-toxic and odorless. Customizable Dimensions: Length adjustable from 10m to 300m per piece upon request. Versatile Connection: Supports zipper, steel ring, and Velcro connection methods. Wide Temperature Resistance: Operates effectively from -40 to 80 degrees Celsius. Anti-Mold & Bacterial: Features LS/LT properties for resistance against mold and bacteria.