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Product Description

Product Description

Prefabricated Steel Structure

Our prefabricated steel structures use Q235B or Q355B steel frames to create open internal space with fewer columns, suitable for warehouses, workshops, logistics centers, farms, and hangars.

Parameters: Q235B/Q355B welded H-beam frame; galvanized C/Z purlins; painted or hot-dip galvanized finish; color steel sheet or insulated sandwich panel roof and wall; size, doors, windows, insulation, and crane option customized.

Advantages: High strength, large clear span, fast assembly, flexible layout, low on-site welding, and easy future expansion.

Applications: Factory, warehouse, workshop, hangar, farm building, garage, and commercial storage.

Process: Design confirmation, cutting, welding, drilling, surface treatment, inspection, marking, packing, and delivery.

Technology: Accurate fabrication, bolted connections, roof/wall sealing, and corrosion protection.

Inspection: Checked against approved drawings and project specifications.

Packing: Bundled, labeled, moisture-protected, and container-loaded.

Support: Design drawings, material list, shipping coordination, and installation guidance.

Building Application	Warehouse, Workshop, Factory, Agricultural Building, Commercial Building	Installation Method	Bolt Connection, Rivet Connection, Welded Connection
Structural Type	Portal Frame, Steel Frame, Multi-Span Frame	Transportation Packaging	Components Bundled and Secured; Small Parts Packed in Boxes; Panels Protected for Container Loading
Main Steel Material	Q235B / Q355B Structural Steel, or as required	Structural Member	Steel Beam, Steel Column
Design Standard	GB, EN 1090, AISC / ASTM, or local code as required	Steel Grade for Building Structure	H-Section Steel
Wall Cladding System	Color Steel Sheet / EPS Panel / Rock Wool Panel / PU Sandwich Panel	Maximum Wind Resistance (mph)	121mph
Surface Treatment	Shot Blasting, Anti-Rust Primer, Finish Painting; Hot-Dip Galvanizing Optional	Maximum Roof Load (lb./sq.ft)	20+ lb/sq.ft
Doors and Windows	Sliding Door, Rolling Shutter Door, Personnel Door, Aluminum/PVC Windows	Warranty	5 year

Our design and engineering team provides customized steel structure design support for warehouses, workshops, agricultural buildings, commercial buildings, prefabricated houses, container buildings, and other project-specific applications. We support sample-based customization, design-based customization, full customization, partial customization, and flexible configuration according to each customer's project requirements.

From the initial inquiry stage, our engineers can help review the building purpose, dimensions, layout, local climate conditions, wind load, snow load, roof and wall requirements, doors, windows, ventilation, insulation, crane requirements, and installation conditions. Based on the confirmed project information, we can provide practical steel structure solutions covering building layout, frame arrangement, material selection, component configuration, and connection details.

Our design support includes 2D layout drawings, 3D model presentations, structural detailing, fabrication drawings, material lists, installation drawings, component marking plans, and technical guidance. We use professional engineering software, including AutoCAD, Tekla Structures, PKPM, 3D3S, SAP2000, STAAD.Pro, RISA-3D, and other applicable tools, to improve communication accuracy and production preparation.

For the main steel frame, we can design H-section steel columns and beams, C- or Z-section purlins, bracing systems, connection plates, high-strength bolts, roof systems, wall cladding systems, sandwich panels, doors, windows, gutters, trims, and related accessories. Q235B, Q355B, and other suitable steel grades can be selected according to project requirements.

Before production, our team focuses on confirming key details such as span, height, bay spacing, roof slope, loading requirements, structural connections, panel installation, drainage, packaging, and transportation limits. This helps reduce potential site installation issues and supports efficient project delivery.

Our goal is to provide clear, buildable, and cost-effective steel structure solutions from concept design to final delivery.

Company Profile

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Shenyang Daxinhuan Engineering Co., Ltd. is an integrated manufacturer and trading company specializing in steel structures, prefabricated buildings, building materials, and customized project solutions. Established in 2016 with a registered capital of RMB 50 million, we provide integrated services covering engineering design support, steel fabrication, quality control, export packing, international shipping, and technical assistance.

 

Our main products include steel structure warehouses, industrial workshops, prefabricated steel buildings, steel frame buildings, agricultural buildings, commercial buildings, prefabricated houses, container houses, steel structure components, wall and roof cladding systems, sandwich panels, and customized building materials. These products are widely used in logistics storage, manufacturing plants, agricultural facilities, commercial spaces, workshops, warehouses, and prefabricated construction projects.

 

We operate a leased and controlled steel structure fabrication facility. Our annual production output value exceeds RMB 100 million. The facility is equipped with laser cutting machines, flame cutting machines, bending machines, punching machines, shearing machines, shot blasting machines, arc welding machines, integrated welding and assembly equipment, and assembly machines. This production capability allows us to maintain stable fabrication quality and delivery control for customized steel structure projects.

 

Our products can be manufactured with Q235B, Q355B, and other steel grades according to project requirements. Main structural components include H-section steel columns and beams, C and Z purlins, bracing systems, high-strength bolts, roof and wall panels, insulated sandwich panels, doors, windows, trims, gutters, and related accessories. Anti-rust painting and hot-dip galvanizing are available to improve corrosion resistance and service life.

We have a 20-person R&D team supporting sample-based customization, design-based customization, full customization, partial customization, and flexible customization. Our engineering support can include layout drawings, 3D models, structural detailing, fabrication drawings, material lists, installation drawings, and technical guidance. We use professional engineering tools such as AutoCAD, Tekla, PKPM, 3D3S, SAP2000, and other applicable software to support project communication and production preparation.

 

Quality control is managed throughout material receiving, fabrication, welding, surface treatment, component marking, packing, and shipment preparation. We pay attention to fabrication accuracy, connection details, bolts, plates, purlins, panel fixing systems, protective packing, and installation convenience, helping customers receive practical, durable, and easy-to-install building solutions.

 

Our foreign trade team consists of 20 professionals serving customers in Southeast Asia, the Middle East, Europe, North America, and South America. The average delivery time is about 30 days after technical drawings and order details are confirmed. Our main export ports are Dalian Port and Tianjin Port. MOQ starts from 100 square meters.

 

We accept D/P, PayPal, Western Union, and small-amount payment options. Whether you need a warehouse, workshop, agricultural building, commercial building, prefabricated house, container house, or a customized steel structure project, our team is ready to provide professional support from initial communication to final delivery.)

Certifications

Packaging & Shipping

Steel components are packed by type, size and installation sequence to support efficient unloading and on-site assembly. Main frames, beams and columns are bundled with steel straps and secured on steel skids or wooden supports where required. Connection plates, bolts and small accessories are packed separately and clearly labeled for easy identification.

All components are protected against scratching, moisture and movement during transport. Loading plans are prepared according to container dimensions and cargo weight distribution to maximize space utilization and ensure safe ocean shipment. Standard export packing is available for 20GP, 40GP, 40HQ or open-top containers, subject to project dimensions and delivery requirements.

Each shipment can be supplied with packing lists, component marks and installation references to help customers check materials efficiently upon arrival.

Roof and wall panels are protected with PE film and packed in stable bundles to reduce scratches, moisture exposure and deformation during handling. Each bundle is supported by spacers and secured with straps for safe forklift loading and container transportation.

Panel length, bundle weight and container loading arrangement are planned according to the project specification. Corner protection and waterproof covering can be added when required. Clear packing marks help customers identify panel types, quantities and installation locations after arrival.

FAQ

1. What is your production lead time?

Typically 30–45 days after approved shop drawings for prefabricated steel structures such as warehouses, workshops, and industrial buildings.

Shipping time depends on destination and terms (FOB/CIF).

 

2. Can you provide custom steel structure design?

Yes. We provide custom steel structure solutions based on CAD/DWG drawings or project requirements.

We design for local codes (wind, snow, seismic loads) and reply with technical proposal + quotation within 24–48 hours.

 

3. Do you offer engineering design service?

Yes. We provide turnkey steel structure engineering + design + fabrication support using:

AutoCAD / Tekla / PKPM / 3D3S.

Includes shop drawings, structural design, and installation guidance.

 

4. How do you ensure packaging and shipping safety?

We use export-grade packing:

anti-rust treatment + steel frame bundling + pallet protection + labeled components.

Ensures safe delivery for long-distance sea freight (FOB/CIF).

 

5. Are you a manufacturer or trading company?

We are an integrated manufacturer and trading company specializing in steel structure solutions. We provide engineering design, fabrication, quality inspection, packaging, and export logistics services, ensuring full control from project planning to delivery.

 

6. What payment terms do you accept?

Flexible terms: T/T, deposit + balance before shipment, negotiable for large or long-term projects.

 

7. Who handles shipping and export documents?

We provide full export service including:

customs clearance, FOB/CIF shipping, packing list, invoice, B/L, and loading supervision.

8. What if there is a quality issue after delivery?

We offer a 5-year warranty.

Confirmed issues → replacement + technical support + fast response solution.

 

9. Do you accept third-party inspection?

Yes. We support SGS / BV inspection and client factory visits at any stage, including raw material, welding, and pre-shipment inspection.