Customized Prefab Industrial Steel Warehouse Steel Structure
Prefabricated Workshop
Product Specifications
| Raw Steel Material | Q235B, Q355B, ASTM A36 |
| Application | Steel Workshop, Steel Structure Platform, Structural Roofing, Frame
Part |
| Surface Treatment | Painting or Hot-DIP Galvanized |
| Service Life | 50 Years |
| Wall and Roof | Steel cladding sheet, Sandwich Panel |
| Columns & Beams | H-Section Steel |
| Shot Blasting Level | SA 2.5 |
| Certification | CE, AISC, SGS, BV, ISO, GB |
| Installation | Engineer Guidance on Site |
| Drawing | CAD, TEKLA, 3D Model, PKPM, BIM |
| HS Code | 9406900090 |
| Transport Package | Standard Export Package or Customer's Requirement |
| Production Capacity | 30000ton/Year |
| Features | Prefab Steel Structure, Large Span, Multi-Floor |
| Connection Form | Bolt Connection |
| Parapet Wall | As Requested |
Key Customer Requirements
- Strength and durability: High strength steel structures that withstand environmental
conditions and natural disasters, ensuring safety and long-term
lifespan.
- Aesthetics and flexibility: Modern appearance with customizable design features to accommodate
various project requirements.
- Sustainability: Environmentally friendly solutions with energy efficiency and
reduced carbon emissions.
- Cost-effectiveness: Economical solutions with rapid construction capabilities to meet
project timelines.
Material Specifications
| Component | Specification |
|---|
| Main Steel Frame (Column) | Q235, Q355 Welded H Section Steel |
| Main Steel Frame (Beam) | Q235, Q355 Welded H Section Steel |
| Secondary Frame (Purlin) | Q235 C and Z purlin |
| Knee bracing | Q235 Angle Steel |
| Tie Bar | Q235 Circular Steel Pipe |
| Bracing | Q235 Round Bar |
| Column and Horizontal Bracing | Q235 Angle Steel, Round Bar or Steel Pipe |
| Roof Panel | EPS Sandwich Panel / Fiber Glass Sandwich Panel / Rock Wool
Sandwich Panel / PU Sandwich Panel / Steel Sheet |
| Wall Panel | Sandwich Panel / Corrugated Steel Sheet |
| Structure Usage | Up to 50 years |
| Paint Options | Alkyd painting, two primary painting, two finish painting (gray
paint, red paint, white paint, epoxy zinc etc.) Or Galvanized |
Project Showcase

Project Usage: High-End Intelligent Hydraulic Machine Tool Equipment
Size of the plant: Total Area 9,702 Sqm
Steel Structure Weight: 630Ton

Project Usage: Logistics Steel Warehouse For High-Speed Rail Station
Size of the plant: Total Area 24,570 Sqm
Steel Structure Weight: 985Ton

Project Usage: Textile Manufacturing Machine Machine Tool Equipment
Size of the plant: Total Area 6,615 Sqm
Steel Structure Weight: 750Ton
About Qingdao Ruly Steel Engineering Co., Ltd

Qingdao Ruly Steel Engineering Co., Ltd is a professional steel
structure fabrication and engineering company, located in Qingdao,
China, which integrates steel structure design, research and
development, manufacturing and installation. Our project portfolio
includes prefabricated steel workshops, warehouses, logistics
parks, civil building systems, high-rise residential buildings,
exhibition centers, stadiums, airport stations, bridges, power
plants, chemical plants, and oil & gas facilities.
Our 35,000 square meter facility includes 20,000 square meters of
plant space with over 100 employees. Our monthly production
capacity exceeds 1500 tons of steel structures, including
light/heavy H steel, BOX steel, cross-shaped section steel, large
diameter submerged arc straight-weld pipe, steel model structures,
C/Z purlins, and machining fitting components.
We maintain ISO9001:2008 quality management, ISO14001:2004
environmental system, and GB/T28001:2001 occupational health system
certifications, along with ASTM and SGS product certifications.
Certifications
Our Services
- Structural steel fabrication, painting, galvanizing, and
pre-assembly
- Design, fabrication, and installation of prefabricated steel
structure buildings
- Detailed fabrication drawings based on your architectural plans
- Technical advice for usage, maintenance, and improvements
Quality Control
- Raw material quality control: Thickness tolerance <0.25mm, yield and tension strength
testing, third party inspection
- Fabrication quality control: 100% dimension testing, 20% ultrasonic welding tests, magnetic
powder testing
- Surface treatment: Shot blasting grade Sa. 2.5, paint primer within 5 hours,
holiday-free coatings
- Pre-assembly: Testing all connection details before shipment
Packing and Transport
All structure components, panels, bolts and accessories are packed
with standard ocean transportation packaging and loaded into 40'HQ
containers. Our skilled workers use cranes and forklifts to prevent
damage during loading.
Component Examples
Frequently Asked Questions
Q: Are you a manufacturer or trading company?
A: We are a manufacturer with our own factory. You're welcome to
visit us to see our production facilities and quality control
processes.
Q: Is your price competitive?
A: We offer the best price for equivalent quality and the best
quality for equivalent prices, working to reduce your costs while
maintaining high standards.
Q: Can you provide installation support?
A: We provide detailed installation drawings and can send engineers
or a full installation team upon request.
Q: Do you accept inspection during production?
A: Yes, we welcome inspectors at any stage of production, including
container loading.
Q: Do you offer design services?
A: Yes, we provide complete design solutions using AutoCAD, PKPM,
MTS, 3D3S, Tarch, and Tekla Structures.
Q: What is your typical delivery time?
A: Delivery time depends on order quantity, typically 40 days to
nearest Chinese seaport after receiving deposit.
Q: How can I get a quotation?
A: Contact us by email, phone, WhatsApp, or Viber - we respond
within 8 hours.
Why Choose Us?
- Professional design team capable of creating custom solutions or
calculating steel quantities from your plans
- Skilled fabrication team with advanced equipment and
project-specific production schedules
- One-stop service with integrated project proposals based on
extensive experience
- Dedicated QC team ensuring products meet your specifications
- Comprehensive after-sales service including maintenance advice for
steel components