DERFLEX is a professional flexible industrial air duct manufacturer supplying heavy duty flexible air ducts for industrial ventilation, HVAC, mining, tunneling, dust and fume extraction systems worldwide.

DERFLEX is a professional industrial air duct manufacturer supplying heavy-duty flexible air ducting for ventilation, HVAC, mining, tunneling, dust control and industrial exhaust systems. Factory direct supply, global delivery.

DERFLEX photoluminescent film for advertising delivers long-lasting glow-in-the-dark performance for safety signage, outdoor advertising, displays, and promotional graphics. Engineered for durability, printability, and visual impact.

DERFLEX PVC Billboard Banner Material is engineered for long-term outdoor advertising. High tensile strength, UV resistance, excellent printability for large-format billboards, building wraps, and outdoor banners worldwide.

DERFLEX waterproof PVC coated polyester fabric offers high strength, durability, and long-term outdoor performance. Trusted manufacturer and wholesale supplier for industrial, architectural, and protective applications.

DERFLEX is a professional PVC coated fabric wholesale manufacturer and supplier, offering high-performance coated fabrics for industrial, advertising, agriculture, architecture, and protective applications worldwide.

DERFLEX PVC fabric for tunnel ventilation ducts engineered for mining, tunneling, and underground engineering projects. Flame-retardant, anti-static, high-strength PVC coated fabrics for professional ventilation systems.

DERFLEX wholesale PVC retractable ventilation ducts for tunnels, mines, and engineering projects. Durable, flame-retardant, customizable ventilation solutions for underground and industrial applications.