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Pre Engineered Light Steel Structure Building
US$30.00-100.00
200 Square Meters
Product profile
Customization
AvailableConnection Form
Welded ConnectionSurface Treatment
Zinc Coating, Spray-Painting, Ball BlastingModel NO.
DG2-031Welding Method
Auto Aubmerger Arc Welding, Hand WeldingWelding Test
Ultrasonic Testing, X-ray TestingPainted Thickness
60-80umHot DIP Galvanized Thickness
80umType
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
Q235Residential Wall Structure
ConnectorApplication
Steel WorkshopTransport Package
Bulk ShipmentSpecification
Q235, Q345Trademark
Double GrandOrigin
Qingdao, ChinaHS Code
7308900000Production Capacity
20000ton/YearKey features
Long Service Life: Designed for a lifespan of over 25 to 50 years.
High Durability: Features high quake-proof, water-proof, and fire-proof capabilities.
Customized Design: Prefabricated and customized design available according to client requirements.
Fast Construction: Easy to install and maintain, saving time and labor costs.
Eco-Friendly: Environment friendly materials and construction process.
High Space Efficiency: Optimized design for maximum space utilization.
Diverse Material Options: Available in Q235/Q345 steel with various surface treatments.
Comprehensive Service: Includes design, manufacturing, delivery, and detailed installation drawings.
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 is the expected service life of the building?
A:
The building is designed for a lifespan of over 25 to 50 years.
Q:Can the design be customized?
A:
Yes, we offer prefabricated and customized designs according to your specific requirements.
Q:What materials are used for the structure?
A:
We use Quality Carbon Structural Steel (Q235) and Alloy Structural Steel (Q345) with options for hot-rolled or welded H-sections.
Q:What surface treatments are available?
A:
Options include Zinc Coating, Spray-Painting, Ball Blasting, and Hot DIP Galvanizing.
Q:What are the lead times for delivery?
A:
Lead time is 1 month during off-peak season and 1-3 months during peak season.
Send Inquiry
*To:
Qingdao Doublegrand Metal Products Co., Ltd.
Qingdao Doublegrand Metal Products Co., Ltd.*Content:
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