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| Product Name | Prefabricated Large-Scale Steel Structure Building |
| Main Frame | Welded H-beams made of Q235B/Q355B steel (S355JR, ASTM A572) |
| Secondary Frame | C/Z purlins, steel bracing, tension rods, knee braces |
| Surface Treatment | Hot-dip galvanizing or double-layer anti-rust coating |
| Roof and Wall Panels | Color-coated steel sheets (0.3–0.7 mm) or composite panels (EPS/PU/PIR), skylights, glass curtain walls, aluminum materials |
| Design Parameters | Wind load (up to 150 km/h), snow load, seismic resistance |
| Door Systems | Electric roller shutters, sliding doors, lift doors, or sectional garage doors |
| Window Systems | PVC frames with tempered glass windows or aluminum alloy windows |
| Connection Method | High-strength bolt connections (easy assembly) |
| Accessories | Self-tapping screws, rivet nuts, gutters, downspouts, ventilation units |
| Service Life | Over 50 years |
Based in Weifang, Shandong, Zhilian Steel Structure is a professional original factory. We specialize in customized steel structure frames and heavy-duty platforms, offering one-stop solutions for industrial construction and logistics warehousing. We have full-automatic production lines with in-house QC, no middlemen. Custom and OEM processing is available. Our products feature high stability and load capacity, complying with international standards with reliable quality. With rich export experience and numerous global project cases, we deliver stable quality and fast shipment. Possessing certificates and qualifications such as ISO9001, ISO14001, ISO45001, EN1090-1, and CE. We are your trustworthy long-term steel structure manufacturer partner.
