
Big-Span Prefabricated Steel Frame House Design/Apartment. Customizable Steel Structure: Size, door, and window dimensions are fully customized to meet specific project requirements. High-Strength Steel Material: Constructed with Q355/Q235 H-steel columns and beams for superior structural integrity. Versatile Wall & Roof Options: Choose from insulated sandwich panels (PU, rock wool) or steel plates with various thicknesses. Professional Installation Support: Detailed instructions and videos provided; onsite supervision available for large projects. Fast Delivery Time: Standard delivery within 15-30 days, depending on order quantity. Strict Quality Control: 100% quality testing before delivery ensures high standards and durability. OEM/ODM Service Available: Professional manufacturing with OEM and ODM services for custom designs. Wide Application Scope: Suitable for warehouses, workshops, hotels, and multi-story steel buildings.