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Large Span Prefabricated Steel Structure for Workshop/Warehouse
US$30.00-80.00
200 Square Meters
Product profile
Customization
AvailableSteel Frame
Steel Beam, ColumnBracing
Galvanized Steel PurlinModel NO.
DG-LW01Maintenance
Colour Steel Bending PartsRoof
Colour Galvanized Steel SheetWall
Colour Galvanized Steel SheetType
H-Section SteelStandard
GBTrademark
Carbon Structural SteelForming
Hot-Rolled SteelConnection Form
Welded ConnectionMember
Steel ColumnType of Steel For Building Structure
High-Strength SteelCarbon Structural Steel
Q235Residential Wall Structure
WallboardApplication
Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part, Steel WarehouseTransport Package
BulkSpecification
SGSTrademark
DGOrigin
ChinaHS Code
7308900000Production Capacity
30000sqm/MonthKey features
Custom Design Service: We design based on your layout, usage, and local climate requirements.
Multiple Wall Options: Choose from Color Steel, EPS, PU, or Rock Wool sandwich panels.
High-Strength Steel: Constructed with Q235 Carbon Structural Steel and H-Section beams.
Wind & Snow Resistance: Structure designed to withstand specific local wind and snow loads.
Crane Support: Compatible with crane beams; parameters provided by client.
Flexible Packaging: Loaded in 20GP, 40GP, or 40OT containers as per request.
Fast Off-Season Delivery: Average lead time is one month during the off-season.
Global Export Experience: Exporting since 2003 to North America, Europe, Asia, and Africa.
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 wall and roof materials are available?
A:
Options include Color Steel Sheet, Color Steel + Glass Fiber, EPS Sandwich Panel (50-100mm), and PU Sandwich Panel (27-100mm) for varying insulation and cost needs.
Q:Can you design the warehouse based on my requirements?
A:
Yes, we provide custom design services. Please provide layout dimensions, usage details, crane needs, and local climate data (wind, snow, earthquake).
Q:What is the lead time for production?
A:
The average lead time is one month during the off-season and 1-3 months during the peak season.
Q:How is the product packaged and shipped?
A:
Products are shipped as bulk cargo in 20GP, 40GP, or 40OT containers, or according to specific client requests.
Q:What payment terms do you accept?
A:
We accept LC, T/T, and D/P as terms of payment.
Send Inquiry
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Qingdao Doublegrand Metal Products Co., Ltd.
Qingdao Doublegrand Metal Products Co., Ltd.*Content:
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