Is technical support provided for installation?

Yes, we supply engineer installation guides to ensure easy installation and maintenance.

What are the main applications of this product?

It is suitable for steel workshops, warehouses, plants, fabricated houses, and frame parts.

How is the product packaged for shipping?

The product is naked loaded in shipping containers (20GP, 40HP, 40GP, 40OT) or as per specific requests.

Hanger with Office

Name: Steel Structure Workshop with Large Span--50meter/Steel Structure Warehouse/Shed/Hanger with Office
Brand: Qingdao Doublegrand Metal Products Co., Ltd.
SKU: 688221132

Shandong, ChinaQingdao Doublegrand Metal Products Co., Ltd.

US$30.00-80.00

200 Square Meters

Product profile

Customization

Available

Connection Form

Welded Connection

Steel Frame

Steel Tube

Model NO.

DM-01

Bracing

Steel Purlin

Main Parts

Steel Beam, Column

Wall

Colour Galvanized Steel Sheet

Roof

Colour Galvanized Steel Sheet

Type

H-Section Steel

Standard

Steel Type

Quality Carbon Structural Steel and Alloy Structural Steel

Forming

Hot-Rolled Steel

Member

Steel Beam

Type of Steel For Building Structure

High-Strength Steel

Carbon Structural Steel

Q235

Residential Wall Structure

Wallboard

Application

Steel Workshop, Steel Fabricated House, Frame Part

Transport Package

Bulk

Specification

Trademark

Origin

China

HS Code

730890000

Production Capacity

30000sqm/Year

Key features

14 Years Manufacturing Experience: Over 14 years of specialized experience in steel structure production and supply.

Multi-Certification Compliance: Holds ISO9001:2008, SGS, and BV certifications for quality assurance.

Professional Engineering Team: Supported by 35 national registered engineers and 120 technicians.

High Production Capacity: Annual output includes 20,000T H-steel and 20,000 sqm sandwich panels weekly.

Customizable Design Options: Roof, wall, door, and window options can be tailored to client requirements.

Easy Installation & Maintenance: Designed for easy installation with provided engineer guides and low maintenance costs.

Versatile Material Selection: Available in Q345B or Q235B steel with various insulation panel options.

Global Market Reach: Exported to North America, South America, Europe, Asia, Africa, and Oceania.

Company profile

Qingdao Doublegrand Metal Products Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2003-07-29Nearest Port: Qingdao PortAverage Response Time: ≤24hTerms of Payment: LC, T/T, D/PInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryQingdao Doublegrand Metal Products Co., Ltd. is identified primarily as a manufacturer/factory of steel structures and related prefabricated building products, although another record describes the company as a trading company. The supplier states that it has exported to more than 30 countries across six continents and began exporting in 2003. Its stated capabilities include design, manufacturing, delivery, installation, and after-sales service, with production equipment, two production lines, ISO 9001 certification, and dedicated quality-control and R&D personnel. It reports substantial annual production capacity and that 90% of sales are exports. The evidence supports strengths in certification, production, customization, export experience, and service scope. Financial credibility cannot be assessed because the available registered-capital information is excluded from consideration and no other financial evidence is provided.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory producing steel structures, warehouses, workshops, prefabricated buildings, and related products. However, a separate company-information record describes its company nature as a trading company, creating a classification inconsistency that prevents an entirely unqualified assessment.

CertificationsThe supplier reports holding ISO 9001 certification and also states that Asia Inspection, SGS inspection, and other third-party inspections are accepted. This is explicit evidence of a formal quality-management certification and willingness to accommodate external inspection.

After-Sales capabilityThe supplier states that it provides one-stop service covering design, manufacture, delivery, installation, and after-sales service, and describes a customer-oriented professional relationship. These statements directly support the existence of an after-sales service offering, although no detailed service standards or response metrics are provided.

R&D capabilityThe supplier reports that it can develop designs independently, provide suitable proposals, and combine sales and engineering personnel to create building models and designs. It also reports 6–10 years of R&D engineer experience and advanced CNC equipment, supporting design and engineering capability, but not necessarily product or process innovation beyond customization.

Production capacityThe supplier reports more than 3,000 tons of monthly capacity, annual capacity of 200,000 tons for steel structures, 200,000 meters of galvanized wall and roof cladding, and 30,000 tons of galvanized C&Z purlines. It also reports two production lines, CNC and machining equipment, inspection at every stage, and pre-assembly before delivery, providing explicit evidence of substantial production capability.

Customization capabilityThe supplier states that it manufactures strictly according to customer drawings and requirements, can design suitable proposals independently, and performs manufacturing and inspection according to drawings. These statements directly demonstrate both drawing-based production and supplier-supported design customization.

Client casesThe supplier states that it has exported to more than 30 countries across six continents, has more than 10 years of experience, and began exporting in 2003. This supports broad international delivery experience, but the slices do not identify specific customers, projects, or independently verifiable case details.

Product Q&A

Q:What materials are used for the steel structure?

We use Q345B or Q235B steel, including high-strength steel, carbon structural steel, and alloy structural steel.

Q:Can the design be customized?

Yes, we offer customization for roof and wall options (EPS, fiberglass, rock wool, PU), doors, windows, and structural sections based on client drawings or dimensions.

Q:What certifications does the factory hold?

Our factory holds ISO9001:2008, SGS, and BV certifications, ensuring high quality standards.

Q:What is the lead time for production?

The average lead time is 1-3 months during peak season and one month during the off-season.

Q:What payment terms are accepted?

We accept LC, T/T, and D/P as terms of payment.