Powered by Made-in-China.com

Steel Fabrication Workshop/Steel Structure Building
US$30.00-100.00
200 Square Meters
Product profile
Customization
AvailableSurface Treatment
Zinc Coating, Spray-Painting, Ball BlastingWelding Method
Auto Aubmerger Arc Welding, Hand WeldingModel NO.
DG2-056Welding Test
Ultrasonic Testing, X-ray TestingPainted Thickness
60-80umHot DIP Galvanized Thickness
80umType
H-Section SteelStandard
GB, ASTM, DIN, JIS, AISI, BSSteel Type
Quality Carbon Structural Steel and Alloy Structural SteelForming
Hot-Rolled SteelConnection Form
Welded ConnectionMember
Steel BeamType of Steel For Building Structure
High-Strength SteelCarbon Structural Steel
Q235Residential Wall Structure
ConnectorApplication
Steel WorkshopTransport Package
Bulk ShipmentSpecification
Q235B, Q345BTrademark
DGOrigin
Qingdao, ChinaHS Code
7308900000Production Capacity
20000ton/YearCompany 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.
Send Inquiry
*To:
Qingdao Doublegrand Metal Products Co., Ltd.
Qingdao Doublegrand Metal Products Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Prefabricated Building /Metal Structure/Steel Structure Building/ Workshop/Warehouse/Factory/Plant
US$30.00-80.00
1,000 Square Meters(MOQ)
Steel Workshop Steel Structure Building with Concrete Wall
US$50.00
500 Square Meters(MOQ)
Steel Structure Building/Steel Building for Warehouse Workshop Office Building
US$15.00-50.00
200 Square Meters(MOQ)
Steel Workshop Building Prefabricated Steel Structure Workshop From China with Low Costs
US$27.00-32.00
500 Square Meters(MOQ)
Large Span Steel Structure Workshop Building From Wantai
US$27.00-32.00
500 Square Meters(MOQ)
Sandwich Panel Portable Steel Structure Warehouse Workshop Prefabricated Building
US$25.00-55.00
200 Square Meters(MOQ)
Steel Structure for Ceramic Tile Plant /Warehouse/Workshop/Steel Building
US$15.00-50.00
200 Square Feet(MOQ)
Wallboard Walkway and Floor Structural Steel Fabrication Metal Building for Sale
US$30.00-55.00
100 Square Meters(MOQ)
Steel Structure Workshop Industrial Workshop Modular Building by SGS Approved
US$27.00-30.00
500 Square Meters(MOQ)
Industrial Factory Metal Construction Building Prefabricated Warehouse Steel Structure Workshop Light Welding Q345 Aluminum
US$30.00-60.00
200 Square Meters(MOQ)
Mobile House Steel Structure Steel Beam Prefabricated Building
US$770.00-900.00
10 Tons(MOQ)
Widely Used Steel Workshop Steel Structure Buildings
US$45.00-75.00
300 Square Meters(MOQ)
Easy Install and Maintenance Steel Structure/Warehouse/Workshop/Building
US$25.00-50.00
100 Square Meters(MOQ)
Wind Resistant Warehouse Durable Workshop Structural Steel Structure Fabrication Customized Widely Used Steel Structure Building
US$35.00-95.00
50 Square Meters(MOQ)
Prefabricated Light Metallic Steel Structure for Workshop Warehouse Building
US$60.00-70.00
1,000 Square Meters(MOQ)
Prefabricated Light Steel Structure Office Workshop Fabrication Building
US$35.00
500 Square Meters(MOQ)
Qingdao Good Quality Fabrication Metal Shed Workshop Prefabricated Structural Steel Structure Warehouse Building
US$35.00-95.00
50 Square Meters(MOQ)
Classic Steel Structure Workshop Prefabricated Warehouse Building in Factory
US$20.00-29.00
500 Square Meters(MOQ)
High Quality of Steel Structure Prefabricated Building From China Supplier
US$770.00-900.00
10 Tons(MOQ)
Professional Customized Steel Structure Fabrication Storage Warehouse Prefabricated Metal Building
US$35.00-95.00
200 Square Meters(MOQ)



















