Product Description Detailed Photos Product Description PCA Spiral Hoses Rigid Duct The telescopic airport air conditioning duct is a helical structure (with wear strips) supported by wire. Flexible duct which is available insulated or non-insulated. A substantial range of Helical wire pitches, exterior fabrics and insulation levels are available. We also produce flexible air ducts for air conditioning using hot melt technology to eliminate pinholes, prevent rainwater from entering, and eliminate pinhole air leakage. Various sizes are available on request. Pre Conditioned Air (PCA) flat hoses, rigid wire supported hoses, tapered PCA adapters and elbow assemblies for the airline industry. Our products are widely used in airport boarding bridges, shipbuilding, furniture manufacturing, municipal engineering, underground project, tunnel construction, fire smoke, and so on. Our products have passed the ISO 9001, SGS, CE certification authority, and have been exported to the United States (USA), Germany, Japan, Europe, Australia, Hong Kong, Taiwan, etc. 180 countries and regions ABOUT US Foshan NuoWei Ventilation Co., Ltd. is a professional R&D, manufacturing, and global sales one of the ventilation duct with a portable fan manufacturing enterprise, the factory has more than ten years of experience in the technical team and advanced production equipment and technology.NuoWei insists on the pursuit of excellent quality, as the industry's leading ventilation equipment specialist manufacturer providing quality products and services to customers in 180 countries and regions worldwide, the company adheres to the quality survival, quality, and development, to the business philosophy of quality and efficiency, and many enterprises established long-term stable cooperative relations, and obtain the unanimous recognition and praise of our customers at home and abroad. NuoWei With advanced manufacturing equipment and a strong technical team, for domestic and foreign to provide Marine ventilation hoses, tunnel ducts, airport boarding corridor blower hoses, underground ventilation hoses, air conditioning insulation flexible hoses,anti-static(conductive) ducts, high-temperature flexible duct, abnormal shape hose, portable fan, portable explosion proof fan,36V marine low-pressure fan, portable plastic fans, and other quality products. The products are widely used in mining, shipbuilding, furniture manufacturing, municipal engineering, airport boarding bridges, laboratory and underground engineering, fire smoke, and tunnel construction. the products have been exported to the United States, Germany, Japan, Europe, Australia, Hong Kong, Taiwan regions etc. Welcome at home and abroad to visit our factory for business negotiation.NouWei will provide you with high-quality products. we believe that future success belongs to quality leaders in the century. Our Advantages 1. Factory Direct Sale: Nuowei is a factory based in Guangdong, China. 2. 10+ years experience: We are a professional company in this ventilation duct. 3. Small MOQ: small MOQ to meet different customers requirements. 4. Fast response: response to you in 24 hours, and take quick action in production. 5. High quality assurance: ISO9001 quality control system, CE/ SGS certificates as the proof. 6. Delivery time: after receiving confirmation of order. 7. Quality guarantee: All products are 100% QC inspection before shipment. 8. OEM or ODM is warmly welcome. PAYMENT We usually use TT. T/T 30% deposit before production and balance 70% before delivery or against B/L copy if see shipment. 100%L/C at sight. Westunion, paypal is available. SHIPPING If the quantity of order is not very big,we could send them to you by express delivery,such as