A comprehensive one-stop solution featuring fast delivery timelines and expert installation guidance. This robust building structure comprises precision-engineered internal support systems and durable external enclosure components, forming a cohesive and reliable framework.
The steel framework employs a sophisticated portal frame design, integrating:
- Heavy-duty steel columns
- High-strength load-bearing beams
- Reinforced bracing systems
When paired with the external enclosure, this configuration forms a fully sealed building envelope engineered to resist extreme weather conditions—including strong winds, heavy rainfall, and accumulated snow loads—thus ensuring long-term structural durability and reliability.
All metal components undergo meticulous prefabrication in our specialized workshop, featuring precision cutting, welding, drilling, and the application of industrial-grade protective coatings.
Prefabricated components are transported to the construction site and secured via standardized bolted connections, enabling:
- Streamlined on-site assembly with minimal on-site modification
- Labor-efficient installation processes
- A significant reduction in overall construction timelines
The stability and performance of the steel frame depend on five key structural components working in synergy:
- Tension members
- Compression members
- Bending members
- Combined-stress members
- Purpose-engineered connection joints
Each component is precision-engineered to optimize load distribution, ensuring the frame meets rigorous structural performance standards.
Construction Features
- Lightweight construction with high strength, large spans, and reduced foundation pressure
- Shorter construction period compared to concrete buildings with simple on-site assembly
- 20-30% lower investment cost than traditional buildings
- High fireproof performance and corrosion resistance
- Buildings can be disassembled, moved easily, and recycled with no pollution
Technical Specifications
Dimension | Length * width * eave height, roof slope |
Type | Single/double/multi-slope; Single/double/multi-span; Single/double/multi-floor |
Foundation | Concrete and steel foundation bolts |
Column and Beam | Hot rolled or welded H steel Q355B, high strength bolts connection, straight or variable cross-section |
Bracing | X or V type bracing made from angle steel or pipe |
C/Z Purlin | Q235B C/Z section steel (C160-300 or Z160-300) |
Roof/Wall Panel | Single colorful corrugated steel sheet or sandwich panel with EPS, rock wool, glass wool, or PU insulation |
Accessories | Skylight belts, ventilators, down pipes, gutters, doors, windows |
Surface Treatment | Painting or hot dip galvanized |
Package | Nude or packed on steel pallet in 40'HQ/OT containers |

Welding procedures:
TSIN undertake all welding procedures in accordance with GB standard. Our dedicated Welding Inspectors are certified by the government authority.
We perform non-destructive testing (NDT) in accordance with contract documents and applicable welding codes. As part of this process, we ensure that all inspections, test plans and quality manuals are fully documented and maintained.
Tests we conduct include:
- Dimension check
- Visual examination
- Ultrasonic testing
Whether manufacturing a domestic structure, as well as industrial building or commercial building, our precision fabrication reduces time onsite and the associated labour costs.
At TSIN, we believe that the quality of our work is a defining feature of our services. We are committed to providing exceptional quality products and a service which is reflective of our dedication to excellence at all stages of a project lifecycle.
We deploy extensive quality control measures to safeguard the quality from beginning to end. This includes the inspections of all
materials prior to, and following fabrication.
TSIN employ highly trained and experienced professional fabrication and welding staff, and because of this, we are able to deliver a wide variety of fabrication services including a variety of steel sections, designed to meet your specific project requirements.
- Measuring, cutting and welding the steel
- Placing the holes and cleats in the correct position
- Packaging and carefully loading in the right sequence
- Dispatching to site and erecting if required.
We implement rigorous quality control measures throughout the project lifecycle, including:
- Material inspections before and after fabrication
- Precision measuring, cutting, and welding
- Accurate hole and cleat placement
- Proper packaging and loading sequence
- On-site erection when required
Company Profile
Qingdao Tsin Steel Structure Construction Technology Co., Ltd. provides integrated solutions for steel structure workshops, warehouses, and multi-storey buildings, including:
- Layout consulting and structural design
- Fabrication and delivery solutions
- Installation guidance
Our production capacity reaches 2,500 tons per month across 20,000m² of workshop space (30,000m² total factory area). We operate complete production lines for H steel, C/Z purlins, and various steel sheet and sandwich panels.
1. Who are we?
Based in Shandong, China since 2025, we serve clients in South America, Africa, Oceania, and other global markets with a team of 5-10 professionals.
2. How do we guarantee quality?
Pre-production samples and final inspections before shipment ensure consistent quality standards.
3. What products do we offer?
Steel Structure Warehouses, Workshops, Buildings, Poultry Houses, and Prefab Houses.
4. Why choose us?
20+ years experience providing complete steel structure solutions with integrated design, fabrication, and installation services.
5. What services do we provide?
We accept FOB, CFR, CIF, EXW delivery terms and T/T, L/C, Cash payments in USD, EUR, AUD, CNY.