What is the warranty period for the steel structure?

We provide a 5-year warranty for the steel structure building.

What are the main materials used for the structure?

The main frame uses H-beam made of Q235B or Q345B steel. Purlins are C or Z type, and connections use high-strength bolts.

What is the minimum order quantity?

The minimum order quantity is 1000 square meters.

Long-Span Steel Structure Framework Building with Professional Design

Name: Long-Span Steel Structure Framework Building with Professional Design
Brand: Gaomi Wantai Steel Structure Engineering Co., Ltd.
SKU: 833106065

Shandong, ChinaGaomi Wantai Steel Structure Engineering Co., Ltd.

US$32.00

500-2,999 Square Meters

US$27.00

3,000+ Square Meters

Product profile

Customization

Available

After-sales Service

on Site Guiding

Column and Beam

Hot Rolled or Welded H Section, I Section

Model NO.

WT-ND-349

Service Life

More Than 30 Years

Surface Treatment

Painted or Galvanized

Roof & Wall Panel

PU, EPS, Rock Wool/Fiber Glass Sandwich Panel

Drawing

Design The Drawing as Your Demand

Panel Thickness

50mm, 75mm, 100mm

Crane

No More Than 25 Ton

Windows

Allumimium Alloy/PVC

Doors

Sliding Door/Rolling Door

Roof/Wall System

Sandwich Panel(EPS/PU/Firber Glass/Rock Wool)

Standard

GB, ASTM

Connection Form

Bolt Connection

Type of Steel for Building Structure

H-Section Steel

Carbon Structural Steel

Q235

Warranty

5 Years

Transport Package

Sea Worthy Packing

Specification

L*W*H, as Per Clients Requirement

Trademark

Origin

Qingdao, China

HS Code

9406000090

Production Capacity

20000 Square Meters Per Month

Key features

Custom Design Service: Professional engineers design drawings based on your specific requirements and site conditions.

High Safety Performance: Structure is wind proof, snow proof, and earthquake resistant with ISO9001 quality control.

Easy Installation: Bolted connection system allows for fast assembly and disassembly with onsite guidance.

Durable Materials: Uses Q235/Q345B steel with painted or galvanized surface treatment for over 30 years life.

Energy Efficient Panels: Sandwich panels (PU/EPS/Rock Wool) provide excellent heat insulation, waterproofing, and sound proof.

Cost Effective Solution: Lower cost with better quality, short production time, and flexible design options.

One-Stop Service: Comprehensive service from design, manufacture, delivery to installation and after-sales support.

Certified Quality: CE, ISO9001, SGS, and BV certified manufacturing with 100% finished product inspection.

Company profile

Experienced TeamImporters and Exporters

Gaomi Wantai Steel Structure Engineering Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs, Full Customization, etc. CertifiedExport Year: 6 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.27h

AI-Powered supplier vetting

SummaryWan Tai appears to be a manufacturer and engineering-service supplier focused on steel structures, warehouses, metal processing, building materials, and related equipment. It reports one-stop design, manufacturing, installation, and after-service, with documented corrective-action and complaint-handling procedures. The supplier offers OEM, ODM, and multiple levels of customization, and reports new products within the past year. Production evidence includes steel structure and steel warehouse output of 50,000 tons each, export markets across several regions, and a broad range of metal-processing equipment. However, the provided information does not establish certifications, financial strength, named customer cases, or a complete supplier classification. The stated absence of an SDK is a limitation only for SDK-related innovation requirements.

Supplier typeThe supplier’s stated scope covers metal structure manufacturing and sales, steel rolling, insulation materials, construction-related products, equipment, and engineering management. This supports classification as a manufacturer with construction and engineering-related supply capabilities, although the slices do not provide a formal legal or industry supplier classification.

After-Sales capabilityThe supplier describes a one-stop service covering installation and after-service. It also reports clear procedures and followed records for corrective and preventive actions and customer complaint handling, providing explicit evidence of structured after-sales support.

R&D capabilityThe supplier reports new products within the past year and provides ODM services, indicating product-development activity. However, it explicitly reports no available SDK, so the evidence supports general R&D capability but not SDK-based innovation capability.

Production capacityThe supplier lists extensive production equipment, including laser and flame cutting, shot blasting, drilling, shearing, punching, rotary disc steel cutting, and weld-flaw detection. It reports 50,000 tons of steel-structure output and 50,000 tons of steel-warehouse output, with stated lead times of 2–3 months in both off-peak and peak seasons.

Customization capabilityBoth R&D and design-capability records list customization from designs, minor customization, flexible customization, and full customization. The supplier also reports ODM services, directly supporting broad customization capability.

Client casesThe supplier states that it provides OEM services for well-known brands and has exported products to more than 60 countries. These statements indicate market and brand-related experience, but no specific customer names, projects, or verifiable case details are supplied.

Product Q&A

Q:Are you a manufacturer or trading company?

We are a manufacturing factory. You are welcome to visit us for inspection to see our professional quality control flow.

Q:What quality assurance do you provide?

We established a procedure to check products at all stages including raw materials and finished goods. SGS, BV, and other testing are available.

Q:Can you offer designing service?

Yes, we have more than 10 design engineers who can design full solution drawings as per your requirements using software like Auto CAD and Tekla Structures.

Q:Do you offer guiding installation on site overseas?

Yes, we can send professional technical engineers to supervise installation on site overseas, providing supervision and training services.

Q:How to get a fast quotation?

Please provide location, dimensions, wall needs, thermal insulation type, door/window quantities and sizes, crane requirements, wind/snow loads, and anti-earthquake level.