
High-Strength Mining Ventilation Flexible Duct for Efficient Underground Engineering. Customizable Dimensions: Diameter 200-3200mm and Length 10-300m available upon request. High Strength Material: PVC composite polyester fiber with customizable tensile strength. Flame Retardant & Anti-Static: Dual-sided PVC coating meets safety standards with anti-static properties. Wide Color Options: Available in Yellow, Black, Orange-Red, and Green. Eco-Friendly & Odorless: Crafted with hot-air welding for zero leakage and environmental safety. Versatile Applications: Suitable for mining, marine, firefighting, and industrial ventilation. Multiple Connection Methods: Supports Zipper, Steel Ring, and Velcro connections for airtightness. Broad Temperature Range: Operates effectively from -40 to 80 degrees Celsius.