What standards and certifications does it meet?

The product meets ISO9001: 2000 standards and complies with AISI, ASTM, BS, GB, and JIS standards.

What are the payment terms?

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

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.

Shed

Name: ISO Prefabricated Large Span Steel Structure Workshop/Hanger/Shed
Brand: Qingdao Doublegrand Metal Products Co., Ltd.
SKU: 729268825

Shandong, ChinaQingdao Doublegrand Metal Products Co., Ltd.

US$85.00

100-199 Square Meters

US$65.00

200-299 Square Meters

US$35.00

300+ Square Meters

Product profile

Customization

Available

Connection Form

Bolt Connection

Surface Treatment

Zinc Coating, Spray-Painting, Ball Blasting

Model NO.

DG-H001

Welding Test

Ultrasonic Testing X-ray Testing

Painted Thickness

60-80mm

Connection

Screws, Bolts

Type

Light Section Steel

Forming

Hot-Rolled Steel

Member

Steel Beam

Type of Steel For Building Structure

High-Strength Steel

Carbon Structural Steel

Q235

Residential Wall Structure

Wall Support

Application

Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part

Standard

ISO

Trademark

Steel Structure

Transport Package

Bulk

Specification

ISO

Trademark

Origin

China

HS Code

7308900000

Production Capacity

5000sqm Per Month

Key features

Earthquake and Waterproof: Stable structure with earthquake proofing and water proofing capabilities.

Fast Construction: Easy installation and fast construction process for large-scale projects.

Energy Efficient: Energy conserving and environmental protection design features.

High Strength Steel: Constructed using Q235 and Q345 high-strength carbon structural steel.

Versatile Application: Suitable for workshops, warehouses, supermarkets, and entertainment centers.

ISO Certified: Meets ISO9001: 2000 standards and various international steel standards.

Custom Design Support: Free design service available based on specific client dimensions and requirements.

Bolt Connection: Utilizes screws and bolts for secure and reliable structural connections.

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 are the main applications for this steel structure?

It is suitable for large-scale manufacturing factories, logistics, warehousing, supermarkets, entertainment centers, and other large-scale constructions.

Q:What steel grades are available?

We provide Q235 and Q345 carbon structural steel, which are high-strength materials suitable for building structures.

Q:What information is needed for custom design?

Please provide dimensions (length, width, height, eave height, roof pitch), door/window details, local climate data, insulation material preference, crane beam requirements, and any specific import restrictions.

Q:What are the key characteristics of this structure?

Key features include fast construction, easy installation, stable structure, earthquake proofing, water proofing, and energy conservation.

Q:How is the steel structure packed for delivery?

We suggest using OPEN TOP containers to protect components, though GP containers are also acceptable depending on the detailed structure.