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UL Fire Resistance Zinc Alloy 3D Adjustable Concealed Hinges for Fire Doors
US$11.59
200-1,999 Pieces
US$10.50
2,000-4,999 Pieces
US$8.12
5,000+ Pieces
Sample price:US$17.39/piece.Request sample
Product profile
Customization
AvailableAfter-sales Service
Online Technical SupportWarranty
5 YearModel NO.
DDCH008-UL-G80Type
3D Adjustable Concealed HingeFinish
Silver, Black, Gold, Polish Brass, Ab, etc.Material
Zinc Alloy & AluminumSize
28X177mmMin. Door Thickness
40mmMax Door Weight of 2 Hinges
80kgOpening Angel
180 DegreeDoor Panel up-Down Adjust
±2.5mm/±3mmDoor Panel Left-Right Adjust
±1.5mmDoor Gap Dimension Adjust
±2mmStyle
Modern SimpleApplication
Commercial & Residential BuildingTransport Package
White Box or Color Box, Carton PackingSpecification
For ExportTrademark
D&D or mark client's logoOrigin
Jiangmen Guangdong, ChinaHS Code
8302100000Production Capacity
200, 000 / MonthKey features
UL Fireproof Certification: Heavy-duty hinges meet UL fireproof standards for safety compliance.
3D Adjustable Design: Allows precise vertical, horizontal, and gap adjustments for perfect alignment.
High Load Capacity: Supports up to 80kg door weight with a pair of hinges.
Durable Material: Constructed from Zinc Alloy and Aluminum Alloy for long-lasting strength.
Wide Finish Options: Available in Silver, Black, Gold, Polish Brass, AB, and more.
5-Year Warranty: Comprehensive warranty coverage for peace of mind.
180 Degree Opening: Enables full door opening for maximum accessibility.
Versatile Application: Suitable for wooden, steel, and folding doors in commercial and residential settings.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2021-10-12Nearest Port: Jiangmen, Guangzhou, ShenzhenAverage Response Time: ≤5.42hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, DDP, CIF, DAP
AI-Powered supplier vetting
SummaryThe supplier is identified as a factory in Jiangmen, with a stated business scope covering sales and production of hardware, building materials, household products, appliances, and bathroom fixtures, as well as related R&D and import/export activities. It reports substantial export activity, self-operated import/export rights, OEM service for well-known brands, ODM service, and broad customization capabilities. Innovation evidence includes two R&D engineers and new products launched during the past year, but no SDK is available. Service operations have several documented procedural gaps: complaint handling, supplier assessment, and corrective/preventive actions reportedly lack written records, while overseas warehouses, showrooms, agents, and branches are unavailable. Quality-control evidence is incomplete, with zero stated test equipment and unknown quality assurance and traceability status. No certification information or explicit customer case details are provided.
After-Sales capabilityThe supplier has a complaint-handling procedure, but no written records, and its service-capability assessment and corrective/preventive-action procedures likewise lack records. It has no overseas warehouse, showroom, agent, or branch, although it can provide international quotation terms and reports peak-season lead time of one month. The evidence shows basic service procedures and export coordination, but significant limitations in documented after-sales execution and overseas support.
R&D capabilityThe supplier reports two R&D engineers, new products launched during the past year, R&D responsibilities covering new product development and technical support, and ODM service. However, it has no available SDK, and the small stated R&D team provides only limited evidence of scale. The supplier demonstrates active product-development capability, though its technical-development resources appear limited.
Production capacityThe supplier is identified as a factory with production in its business scope, reports 50 qualified service-capability suppliers, exports 71%–90% of total sales, has self-operated import/export rights, and states off-season lead time within 15 workdays and peak-season lead time of one month. Against this, quality assurance and traceability status are unknown, and the stated quantity of quality-control test equipment is zero. Production and export capability are indicated, but quality-control infrastructure presents an explicit deficiency.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, providing direct evidence of broad product-design and customization support.
Product Q&A
Q:What is the maximum weight capacity for these hinges?
A:
A pair of these hinges can support a maximum door weight of 80kg.
Q:What finishes are available for this product?
A:
Available finishes include Silver, Black, Gold, Polish Brass, AB, and others.
Q:What is the warranty period for the hinges?
A:
We provide a 5-year warranty for all mechanical defects.
Q:How long does it take to produce an order?
A:
The production lead time is 30-35 days.
Q:What is the minimum order quantity?
A:
The minimum order quantity is 500 pairs.
Send Inquiry
*To:
D&D HARDWARE INDUSTRIAL CO., LIMITED
D&D HARDWARE INDUSTRIAL CO., LIMITED*Content:
Supplier replies will be sent to your registered email
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