What materials are used for the main steel frame?

The main frame uses Q235B and Q355B welded H-section steel for columns and beams.

What are the available insulation options?

Options include EPS, glass fiber, rock wool, and PU sandwich panels, or metal steel sheets for lower cost.

What is the lead time for production?

During peak season, the lead time is 1-3 months; during off-season, it is within 15 working days.

Prefab Portal Frame House Building Large Span Durable Steel Structure Workshop

Name: Prefab Portal Frame House Building Large Span Durable Steel Structure Workshop
Brand: Qingdao Gusite Construction Engineering Co., Ltd
SKU: 2117678905

Shandong, ChinaQingdao Gusite Construction Engineering Co., Ltd

US$30.00-55.00

500 Square Meters

Product profile

Customization

Available

After-sales Service

Lifelong Responsibility

Connection Form

Welded Connection

Model NO.

GST-549

Feature

Anti-Corrosion, Earthquake Resistance, Easy To Install, High Intensity, Recyclable

Install

Online Guidance

Steel Grade

Q235 and Q355

Purlin

C or Z Section Steel

Door

Sliding Door or Rolling Door

Window

PVC or Aluminium Alloy

Type

Light Section Steel

Standard

GB, ASTM, DIN, JIS, AISI, BS

Forming

Hot-Rolled Steel

Member

Steel Column

Type of Steel for Building Structure

High-Strength Steel

Carbon Structural Steel

Q235

Residential Wall Structure

Wallboard

Application

Steel Workshop, Steel Structure Platform

Warranty

50 Years

Transport Package

Standard Export Package or Customer's Requirement

Specification

According to Customer Requirement

Trademark

GST, Carbon Structural Steel

Origin

Qingdao, China

HS Code

7308900000

Production Capacity

20000 Tons Per Year

Key features

50-Year Warranty Coverage: Comprehensive 50-year warranty with lifelong after-sales responsibility for all structural components.

Rapid 45-Day Construction: Large 8000 sqm workshops can be fully completed and put into use within 45 days from start to finish.

Earthquake and Wind Resistance: Engineered to withstand 8-grade earthquakes and 12-grade wind resistance for superior safety.

Customizable Design Options: Fully customizable with optional external wall colors, roof styles, door types, and window materials.

Easy Installation and Expansion: Online guidance provided; entire workshop can be unloaded by two people in under 30 minutes.

High-Strength Steel Materials: Constructed using Q235 and Q355 high-strength steel columns, beams, and frames for durability.

Versatile Insulation Choices: Available with EPS, glass fiber, rock wool, or PU sandwich panels for various temperature ranges.

Global Export Experience: Exported to over 50 countries with branches in Africa for local installation support.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceMulti-language Pioneer

Qingdao Gusite Construction Engineering Co., Ltd

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-11-01Nearest Port: QINGDAOAverage Response Time: ≤1.18hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CIF

AI-Powered supplier vetting

SummaryQingdao Gusite Construction Engineering Co., Ltd. is a China-based limited company described as both a trading company and manufacturer/factory, with stated production of H-, C-, and Z-section steel, color steel tiles, composite boards, and color steel plates. It provides sample-based customization, 3D software design, ODM, and OEM services, and reported new products during the past year. Export activity is established, with six years of exporting experience, self-operated import/export rights, and 51%–70% of sales from exports. Overseas support is limited to equipment installation in the Philippines; no overseas warehouse, showroom, agent/branch, or offline trade-show participation is reported. Service-management documentation is weak: no written procedures or records were reported for supplier-service assessment or corrective/preventive actions, while complaint handling has a procedure but no written records. Certification, complete financial performance, and customer cases are not sufficiently evidenced.

Supplier typeThe supplier is identified as both a trading company and manufacturer/factory, and its business scope covers steel structure, building, decoration, hardware, and related products. This indicates a mixed trading and manufacturing business model, although the provided information does not independently verify the full manufacturing scope.

R&D capabilityThe supplier is identified as a professional technical supplier, provides 3D software design, offers ODM services, and reportedly developed new products during the past year. It also provides OEM services for well-known brands, while no SDK is available; overall, the slices explicitly support meaningful design and product-development capability.

Production capacityReported annual capacity includes 36,000 tons of H-section steel, 2,500 tons of C-section steel, and 2,000 tons of Z-section steel, while the company description additionally identifies composite-board, color-steel-plate, H-beam, C-beam, and Z-shaped-steel production lines. The two capacity descriptions are not fully consistent for H-section steel, but both support established production resources across several product categories.

Customization capabilityThe supplier provides customization from samples, 3D software design services, ODM services, and OEM services for well-known brands. These explicit offerings demonstrate product customization and design-manufacturing support.