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Pre-engineered large span steel structure workshop building

Large-span building structure include basic spatial structures such as grid structure, reticulated shell structure, suspended cable structure, truss structure, membrane structure, thin shell structure and all kinds of combined spatial structures. In industrial buildings, it is mainly used in aircraft assembly workshops, hangars and other large-span factories.
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High-Strength Structural Steel Products


Product Overview


Our advanced structural steel solutions comply with international standards (ASTM/AISC/EN), ideal for:
✅ Industrial Facilities 

✅ Bridge Construction 

✅ High-Rise Buildings 

✅ Warehouse Systems
Custom Fabrication | 20-Year Durability Warranty | Global Logistics Support


Technical Specifications Comparison

Parameter Standard Q235 Enhanced Q345 Custom
Cross-Section (mm) Customizable Customizable Customizable
Yield Strength ≥235 MPa ≥345 MPa
Tensile Strength 375-500 MPa 470-630 MPa
Standard Lengths Custom Cut Custom Cut Custom Cut
Load Capacity 12,000 kg 28,000 kg




Minimum Bend Radius 2.5×t 3×t

(t=material thickness, specifications adjustable per project requirements)


Key Advantages

 Precision Manufacturing Excellence

  • CNC Plasma Cutting

  • Robotic Welding Systems 


 Global Compliance Assurance

  • Multi-Standard Certification

  • Traceable Quality System


⚡ Custom Engineering Solutions

  • Free FEA simulation

  • Non-standard coating systems 


 Reliable Global Delivery

  • container shipping

  • Smart Logistics Protection


Typical Applications

▷ Steel Frame Buildings
▷ Industrial Mezzanines
▷ Bridge Components
▷ Heavy-Duty Racking Systems


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SINCE 1997

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One of the leading steel structure companies in North China is Qingdao Xinguangzheng Steel Structure Co., Ltd.

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