What is the lead time for production?

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

How is the structure packaged for shipping?

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

What certifications does the product have?

The steel structure building is certified with ISO standards, ensuring quality and safety compliance.

Prefabricated Steel Structure Building for Industry/Agriculture

Name: Prefabricated Steel Structure Building for Industry/Agriculture
Brand: Qingdao Doublegrand Metal Products Co., Ltd.
SKU: 686663482

Shandong, ChinaQingdao Doublegrand Metal Products Co., Ltd.

US$35.00-80.00

200 Square Meters

Product profile

Customization

Available

Structure

Steel Structure

Surface Treatment

Zinc Coating, Spray-Painting, Ball Blasting

Model NO.

DG3-070

Welding Method

Auto Aubmerger Arc Welding, Hand Welding

Welding Test

Ultrasonic Testing, X-ray Testing

Painted Thickness

60-80um

Hot DIP Galvanized Thickness

80um

Material

Steel Structure

Certification

ISO

Customized

Usage

Steel Structure Building

Transport Package

Bulk Shipment

Specification

Trademark

Double Grand

Origin

Qingdao, China

HS Code

7308900000

Production Capacity

3000 Tons

Key features

Customized Design: Prefabricated and customized design tailored to client drawings and requirements.

High Durability: High quake-proof, water proof and fire proof with a life time of over 25-50 years.

Fast Construction: Easy to install and maintain, saving time and labor costs during construction.

Premium Materials: Constructed with Q345B & Q235B steel, hot rolled H beams, and high strength bolts.

Versatile Insulation: Maintenance options include EPS, Rock wool, Glass wool, and PU sandwich panels.

Complete Service: Includes design, quotation, detailed installation drawings, and container delivery.

High Space Efficiency: Optimized structure design maximizing usable space for industrial or agricultural use.

Environment Friendly: Eco-friendly materials and construction methods suitable for various climates.

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?

The main frame uses Q345B or Q235B hot rolled H beams or welded H beams. Secondary frames use C/Z purlins, and connections utilize normal and high-strength bolts.

Q:Can the building be customized?

Yes, we offer prefabricated and customized designs. We can design and quote according to your specific drawings, dimensions, and requirements.

Q:What is the expected lifespan of the structure?

The steel structure building has a life time of over 25-50 years, ensuring high durability and long-term use.

Q:What insulation options are available?

Maintenance panels can be made from EPS, fiber glass, rock wool, or PU sandwich panels with thicknesses ranging from 50-150mm.

Q:What are the payment terms?

We accept LC, T/T, and D/P as terms of payment. International commercial terms include FOB, CFR, CIF, and EXW.