Could you send me sample before I place an order?

Yes, offer 3 pcs free samples for your evaluation, you provide the Courier account for freight collect.

Are your company factory or trading company?

We are a SGS Audit factory, over 10 years manufacturing experience in architectural hardware.

How can I get the latest prices?

Send requirements to us by mail or calling , we will reply you in 24 hours.

Zinc Alloy 3D Adjustable 180 Degree Heavy Duty Concealed Invisible Door Hinges

Name: Zinc Alloy 3D Adjustable 180 Degree Heavy Duty Concealed Invisible Door Hinges
Brand: D&D HARDWARE INDUSTRIAL CO., LIMITED
SKU: 2108296375

Guangdong, ChinaD&D HARDWARE INDUSTRIAL CO., LIMITED

US$6.50

200-2,999 Pieces

US$5.50

3,000-4,999 Pieces

US$4.50

5,000+ Pieces

Sample price:US$7.50/piece.Request sample

Product profile

Customization

Available

Type

180°Hinge

Finish

Nickel Plated

Model NO.

DDCH008-G120

Material

Alloy

Customized

OEM/ODM

Color

Black,Silver,Golden

Min Thickness

35mm,40mm,45mm

Max Weight

40kg,80kg,120kg

Screws

Stainless Steel 304

Name

3D Concealed Door Hinge

Feature

Adjustable

Suitable for

Wooden,Steel,Profile,Folding Door etc.

Application

Hotel, Covernment , Apartment Building etc.

Transport Package

White Box or Color Box, Carton Packing

Specification

For Export

Trademark

D&D or mark client's logo

Origin

Jiangmen Guangdong, China

HS Code

83024100

Production Capacity

30000 / Month

Key features

180 Degree Adjustable: Heavy duty concealed invisible door hinges with 180-degree adjustable range.

Multiple Color Options: Available in black, silver, golden, and white painted finishes.

OEM and ODM Service: Professional OEM and ODM cooperation with famous brands.

5 Year Mechanical Guarantee: Comprehensive 5-year mechanical guarantee for product reliability.

High Quality Materials: Made of zinc alloy with SUS304 and SUS316 stainless steel screws.

Wide Application Scope: Suitable for wooden, steel, profile, and folding doors in hotels and apartments.

International Certifications: CE, UL, ANSI, and BHMA Grade 1/2 certified for international standards.

Fast Sample Delivery: Sample time of 5-7 working days with 3 free pieces for evaluation.

Company profile

Importers and ExportersExhibition ExperienceOEM ServicesHigh Repeat Buyers Choice

D&D HARDWARE INDUSTRIAL CO., LIMITED

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2021-10-12Nearest Port: Jiangmen, Guangzhou, ShenzhenAverage Response Time: ≤4.48hTerms 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 certificate you have?

We have CE and UL certificate, all our product design follow up the international standard, such as the EN/CE, UL, ANSI standard.

Q:Do you accept OEM or ODM?

Yes, We are professional in OEM and ODM. now , Cooperating with famous brands for OEM & ODM.

Q:Do you have quality system?

Yes, we have. We have set up our quality system and well controlled our production quality as per the instructions and requirements in it and well-control each procedure throughout the mass-production.

Q:What's the guarantee of your products?

5 Year Mechanical Guarantee.

Q:What's the stainless steel Grade you are working now?

We are working mostly in SUS304 and SUS316, some items can be SUS201 as well.