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Prefab Steel Structure Warehouse/Workshop with Metallic Roof Structure
US$30.00-100.00
200 Square Meters
Product profile
Customization
AvailableConnection Form
Welded ConnectionSteel Frame
Steel Tube, GalvanizedModel NO.
DG-W19Bracing
Steel Purlin, GalvanizedMaintenance
Colorful Steel Sheet, Sandwich PanelRoof
Colorful Steel Sheet, Sandwich PanelWall
Colorful Steel Sheet, Sandwich PanelType
Light Section SteelStandard
GB, ASTM, DIN, JIS, AISI, BSSteel Type
Quality Carbon Structural Steel and Alloy Structural SteelForming
Hot-Rolled SteelMember
Steel BeamType of Steel For Building Structure
High-Strength SteelCarbon Structural Steel
Q235Application
Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Steel Walkway and FloorTransport Package
BulkSpecification
Q235, Q345Trademark
DGOrigin
ChinaHS Code
7308900000Production Capacity
20000ton/YearKey features
14 Years Manufacturing Experience: Over 14 years of specialized experience in steel structure manufacturing.
Easy Installation & Maintenance: Designed for easy installation with engineer guides and low maintenance costs.
High-Quality Steel Materials: Uses Q345B or Q235B steel, including high-strength and carbon structural steel.
Customizable Design Options: Customizable size, roof/wall panels, doors, windows, and steel sections.
Versatile Application Scenarios: Suitable for workshops, warehouses, platforms, houses, and structural roofing.
Multiple Panel Insulation Choices: Options include EPS, fiberglass, rock wool, or PU sandwich panels.
Flexible Shipping & Packaging: Naked loading in containers or as requested; supports 20GP, 40HP, 40GP, 40OT.
Global Export Capability: Exporting since 2003 to North America, Europe, Asia, Africa, and Oceania.
Company profile

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 steel materials are used?
A:
We use Q345B or Q235B steel, including high-strength and carbon structural steel.
Q:Can the design be customized?
A:
Yes, we customize size, panels, doors, windows, and steel sections based on client drawings or dimensions.
Q:What insulation options are available?
A:
Roof and wall options include EPS, fiberglass, rock wool, or PU sandwich panels.
Q:Do you provide installation support?
A:
Yes, we supply engineer installation guides to ensure easy installation and maintenance.
Q:What are the lead times?
A:
Peak season lead time is 1-3 months; off-season lead time is one month.
Send Inquiry
*To:
Qingdao Doublegrand Metal Products Co., Ltd.
Qingdao Doublegrand Metal Products Co., Ltd.*Content:
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