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Qingdao DoubleGrand Metal Products Co., Ltd is the official website of a steel-structure building and metal products manufacturer based in Qingdao, China. It serves overseas B2B buyers with products such as steel-structure buildings, warehouses, workshops, hangars, prefabricated houses, poultry houses, and steel-structure materials. Rather than a standard e-commerce site with online checkout, it is a typical export-oriented inquiry website: customers submit requirements or drawings, and the sales and engineering teams provide solutions, quotations, and project designs.
Based on the site content, its services cover design, manufacturing, delivery, installation, and after-sales support. It can manufacture according to customer drawings and requirements, or provide its own design solutions. On the supply chain side, the website highlights steel sourced from large steel mills and equipment such as CNC laser cutting machines, machining centers, CNC bending machines, and CNC drilling machines. Quality control includes manufacturing according to drawings, inspections at each stage, and pre-assembly before shipment. For logistics, it uses container packaging for sea or rail transport and emphasizes secure packaging to reduce transit damage. Claimed monthly production capacity exceeds 3000 tons.
The website only mentions “factory prices” and the ability to provide quotations. It does not publish standard pricing, minimum order quantities, payment methods, freight responsibility, customs duties, or installation-fee rules. Buyers therefore need to request project-specific quotes based on drawings, dimensions, steel consumption, destination port, installation requirements, and any third-party inspection needs. For cross-border engineering products, this customized quoting model is reasonable, but transparency is relatively limited.
Its strengths are a fairly complete product line covering steel-structure buildings, sandwich panels, galvanized sheets, C purlins, and more, making it suitable for one-stop engineering procurement. It also lists third-party inspection or certification information such as ISO9001:2008, CE, and SGS, and claims exports to more than 30 countries across six continents. The drawbacks are that the official website contains considerable repeated information and offers limited case details. Payment terms, lead times, warranty coverage, and after-sales boundaries are not clearly defined, and there is no visible online transaction or order-management capability.
This site is suitable for overseas engineering contractors, building-material importers, industrial warehousing projects, agricultural breeding projects, and factory-building project owners. It is not very suitable for e-commerce sellers looking to source small retail items for resale. The source text does not provide information on access from China, so this remains unknown; payment methods are also not disclosed. Buyers who want stronger platform protection may compare similar steel-structure suppliers on B2B platforms such as Alibaba.com and Made-in-China.com.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on dg-steelstructure.com official site.
dg-steelstructure.com is an China E-commerce provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach dg-steelstructure.com directly.