1500DX2000D 9X9 550gsm factory mine foldable PVC ventilation duct fabric is designed for extreme mine environments. It uses high-strength PVC material and 9X9 weaving structure, which is wear-resistant and corrosion-resistant. The high-density fabric of 550gsm ensures excellent ventilation performance and can maintain stability under harsh conditions. The ventilation duct fabric is foldable, easy to transport and store, providing an efficient and economical solution for mine ventilation systems, helping to improve the safety and efficiency of mine operations.