What are the main materials used?

Main frame uses Q235B or Q345B steel H-beams. Purlins are C or Z type. Roof/wall panels are sandwich panels (EPS/PU/Rock Wool) or color steel sheets.

What is the minimum order quantity?

The minimum order quantity is 1000 square meters.

What is the lead time for production?

The average lead time is 1-3 months, depending on the season and specific project requirements.

China Supplier Long-Span Steel Structure Framework Buildings

Name: China Supplier Long-Span Steel Structure Framework Buildings
Brand: Gaomi Wantai Steel Structure Engineering Co., Ltd.
SKU: 833112175

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

US$30.00-80.00

100 Square Meters

Sample price:US$100.00/square meter.Request sample

Product profile

Customization

Available

Connection Form

Bolt Connection

Column and Beam

Hot Rolled or Welded H Section, I Section

Model NO.

WT-SW

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)

Type

H-Section Steel

Standard

GB, ASTM, AISI, BV

Trademark

Quality Carbon Structural Steel and Alloy Structural Steel

Forming

Hot-Rolled Steel

Member

Steel Column

Type of Steel For Building Structure

H-Section Steel

Carbon Structural Steel

Q235

Residential Wall Structure

Wallboard

Application

Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part, Steel Walkway and Floor, Steel Structure Bridge

Transport Package

According to Customer′ S Request

Specification

as Per Clients′ Requirement

Trademark

Origin

Qingdao, China

HS Code

9406000090

Production Capacity

20000 Square Meters Per Month

Key features

Custom Design Service: 10+ engineers provide full solution drawings based on your specific requirements.

High Strength Steel Frame: Q235B/Q345B H-beam frame with bolted connection for earthquake and wind resistance.

Easy Installation: Bolted connection system allows for quick assembly and disassembly with engineer guidance.

Quality Certifications: ISO9001, CE, SGS, and BV certified with 100% visual inspection for finished products.

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

Flexible Customization: Customizable dimensions, colors, and materials including H-section, I-section, and various panels.

Fast Delivery: Standard parts manufactured in advance with short production time and container shipping.

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

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: ≤3.42h

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 and enjoy competitive prices.

Q:What quality assurance do you provide?

We have a procedure to check products at all stages (raw materials, in-process, finished goods). We hold SGS, BV, and ISO9001 certifications and support Trade Assurance.

Q:Can you offer design services?

Yes, we have over 10 design engineers who can create full solution drawings using software like Auto CAD, Tekla Structures, and PKPM based on your requirements.

Q:Do you provide on-site installation guidance overseas?

Yes, we provide detailed installation drawings. If needed, we can send professional engineers to supervise installation, provide training, and offer guidance on-site for an extra fee.

Q:How to get a fast quotation?

Please provide: 1. Location, 2. Dimensions (L*W*H), 3. Brickwall needs, 4. Thermal insulation type, 5. Door/Window quantity and size, 6. Crane specs, 7. Wind/Snow load, 8. Anti-earthquake level.