
90 mm Galvanized Post Tension Flat Duct for Prestressed Buildings. Customizable Length: Length is 5.8m per piece but can be customized to meet specific project requirements. Galvanized Surface: Made from hot-dipped galvanized steel strip for superior corrosion resistance and durability. ISO 9001 Certified: Manufacturing process adheres to ISO 9001 standards ensuring high product quality. High Radial Stiffness: Features high stiffness and good tightness to ensure construction quality and safety. Versatile Application: Ideal for post-tensioning in bridges, viaducts, dams, and multi-story industrial buildings. Comprehensive Warranty: Covers 1 to 3 years of mechanical defects with dedicated after-sales service support. In-House Manufacturing: Produced entirely in our own factory in Changzhou, ensuring strict quality control. Fast Sample Delivery: Samples available within 25-35 days with free product cost (buyer pays express).