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Qingdao Ruigang Steel Structure Co., Ltd. Company Profile
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Home > Products > Steel Structure Warehouse > Prefabricated Steel Structure Warehouse with 300 km/h Wind Load Hot-dip Galvanization and Clear-Span Design
Product Details
Highlight:

300 km/h Wind Load Steel Structure Warehouse

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Hot-dip Galvanization Prefabricated Steel Building

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Clear-Span Design Industrial Steel Workshop

Grade:
Q235 / Q355 / Q235B / Q355B
Connection Type:
Bolted, Welded
Application:
Industrial And Commercial
Type:
Prefab Steel Structure Building
Design Standard:
AISC, MBMA, AWS, ASTM
Wind Load:
Up To 300 Km/h
Surface Treatment:
Hot-dip Galvanization, Paint Coating
Wall Cladding:
Galvanized Steel Sheet, Sandwich Panel, Metal Cladding
Grade:
Q235 / Q355 / Q235B / Q355B
Connection Type:
Bolted, Welded
Application:
Industrial And Commercial
Type:
Prefab Steel Structure Building
Design Standard:
AISC, MBMA, AWS, ASTM
Wind Load:
Up To 300 Km/h
Surface Treatment:
Hot-dip Galvanization, Paint Coating
Wall Cladding:
Galvanized Steel Sheet, Sandwich Panel, Metal Cladding
Product Description
Prefabricated Steel Structure Industrial Building
Our warehouses leverage the Rigid Frame System, the international benchmark for industrial stability and cost-efficiency. By focusing on structural symmetry and high-tensile steel members, we deliver an exceptionally stable and reliable building envelope.
Structural Engineering Excellence
  • Integrated Rigid Framework: Primary columns and rafters are fabricated from premium Q355B/Q235B structural steel, precision-engineered for optimal load distribution and foundation efficiency.
  • Corrosion-Resistant Secondary Framing: All C and Z-section purlins and girts receive professional-grade hot-dip galvanization, providing a secure, rust-proof framework across diverse climatic conditions.
  • Localized Code Compliance: Every design is custom-calibrated to meet specific regional building codes (ASTM, Eurocode, or GB), ensuring structural security against wind, seismic activity, and snow accumulation.
Technical Specifications
ITEMS SPECIFICATION
Main Steel Q355, Q235, Q355B, Q235B, etc.
Anti-rust protection Hot-dip galvanized or anti-rust painting
Purlin and girts Cold-rolled C or Z steel, Q355 or Q235
Column & Beam Welded or Hot rolled H-section
Connection method Welding connection or bolt connection
Wall & Roof Sandwich panel or steel sheet
Door Rolled up door or Sliding door
Window Plastic steel or Aluminum alloy window
Surface Hot-dip galvanized or painted
Crane 5MT, 10MT, 15MT, and more
Steel structure industrial building exterior
Product Advantages
  • Expansive Column-Free Interiors: Rigid frame engineering facilitates massive unobstructed floor plans ideal for high-density racking, automated systems, and large-scale machinery.
  • Accelerated Speed-to-Revenue: Factory-prefabricated components with millimeter-level tolerances enable streamlined bolt-together installation, significantly reducing construction timelines.
  • Superior Material Integrity: High-yield structural steel provides exceptional strength-to-weight ratio, ensuring stability under extreme industrial stress and vibration.
  • Extended Life-Cycle Value: Steel is naturally resistant to pests, fire, and rot, with industrial-grade coatings virtually eliminating maintenance requirements for decades.
Manufacturing & Quality Excellence
  • CNC Digital Fabrication: Multi-axis CNC drilling and high-definition laser cutting ensure perfect structural joint alignment without on-site modifications.
  • Submerged Arc Welding (SAW): Automated SAW processing creates deep-penetration, defect-free welds that exceed manual welding standards.
  • Integrity Validation (NDT): 100% of critical load-bearing welds undergo Ultrasonic or Magnetic Particle testing to verify subsurface integrity.
  • Pre-Erection Trial Fit: Complex structural nodes are trial-assembled at our facility to validate geometry and bolt-hole alignment before shipment.
Steel structure manufacturing process Steel structure assembly details
Global Logistics & Installation Support
  • Volumetric Shipping Optimization: 3D nesting software maximizes container volume, reducing shipping costs while protecting components from transit stress.
  • Intuitive Component Marking: Every steel member features permanent tracking IDs corresponding to detailed 3D shop drawings for straightforward erection.
  • Technical Advisory Services: 24/7 remote technical support via video link, with on-site supervisors available for large-scale infrastructure projects.
Global logistics and installation support
Frequently Asked Questions
Are you a manufacturer or trading company?
As a direct manufacturing facility based in Qingdao, China—near Qingdao Port—we maintain stringent quality management, expert design teams, robust production capabilities, and extensive manufacturing experience.
How about your quality control?
  • We partner exclusively with high-quality raw material suppliers and conduct 100% strict testing on all incoming materials
  • All workers are certified and regularly assessed to guarantee production quality
  • Production includes self-inspection, mutual inspection, and workshop inspection—only qualified products proceed
  • Pre-delivery inspections ensure complete item verification against delivery lists for successful local installation
What's the delivery time?
Typically 30 days. We implement perfect management plans for each project to ensure on-time delivery.
Do you offer installation service?
Yes. We provide detailed installation drawings and videos. Most clients can install locally since components are prefabricated and bolted. We can also send engineers for installation guidance.
What's the payment term?
We offer two payment options: 30% advance payment before production with 70% balance before shipping via T/T, or 100% irrevocable L/C.
How to get a fast quotation?
Please send your project preliminary drawing for a detailed quotation within 2 days, or we can confirm specifications with you for timely pricing.
Is your price competitive compared with other companies?
As a direct factory, we offer competitive pricing with guaranteed quality and value.
Our Steel Structure Fabrication Factory
Qingdao Ruigang Heavy Industry Co., Ltd. is a world-class authority in industrial steel solutions. With thousands of successful projects across 50+ countries, we provide the foundational framework for your long-term business success.
Build with precision. Contact our engineering team today for a tailored technical proposal and transparent, professional quotation!
Steel structure factory overview Steel structure manufacturing facility Steel structure production line
Product Attributes
Detailed product attributes and specifications
Overall Rating
5.0
★★★★★
★★★★★
Based On 50 Reviews Recently
5 Star
100%
4 Star
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All Reviews
  • P
    Paul Muthamia
    Philippines Jan 8.2026
    ★★★★★
    ★★★★★
    With highly recognize the steel structure manufacturer for their professional capability and reliable product quality. The materials met the project requirements, production was well managed, and delivery was well organized. This is a trustworthy partner!
  • D
    Dawey Kitumbula
    Iraq Dec 9.2025
    ★★★★★
    ★★★★★
    We chose this company for our steel structure project, and the outcome surpassed all expectations! Their team was professional and efficient from design to construction, making the entire process seamless. The high-quality steel ensures a stable, durable structure that perfectly meets our needs. Notably, the construction period was nearly halved compared to traditional methods, saving us significant time and costs. Attention to detail was impressive—from precise welding to thorough anti-rust coating. The team communicated promptly and resolved issues quickly, giving us complete peace of mind. The finished building is not only aesthetically pleasing but also boasts excellent earthquake and wind resistance, with a high safety factor. Highly recommend for anyone needing steel structure construction—cost-effective, reliable, and trustworthy. We’ll definitely cooperate again!
  • A
    Angie Lopez
    Pakistan Mar 6.2024
    ★★★★★
    ★★★★★
    Very professional and trustworthy. The delivery was swiftl. I will surely work with the supplier again.