Curved Roof Design Structural Steel Construction Shed with Canopy Design. 50+ Year Lifespan: Durable steel frames designed for long-term use exceeding 50 years. ISO 9001 Certified: Quality management certified to ISO 9001:2008 standards. Custom Design Solutions: Full solution drawings tailored to specific project requirements. Lightweight & High Strength: Features high-strength Q235B or Q345b steel with minimal weight. Versatile Insulation Options: Roof and wall panels available with PU, EPS, Rock Wool, or Fiber Glass. Engineer Installation Support: Professional engineers provide on-site installation instruction. Eco-Friendly & Recyclable: Materials are fully recyclable with no construction waste generated. Fast Delivery Time: General delivery to nearest Chinese seaport within 30 days after deposit.