Welcome to D&D HARDWARE INDUSTRIAL Co., Ltd . 
D&D, Leader in Commercial Door Hardware
Pls inquire to  sales@danddhardware.com
/ / ：+86 139 2903 7292
Certified to the Highest European Standards
Read the evidence correctly before approving the handle
Every D&D fire-rated handle undergoes rigorous independent testing. 
Our certifications go beyond the minimum — so you never compromise on compliance.
BS EN 1906: daily-use performance
Grade 4 + 300,000-cycle test result
 
Grade 4 addresses high-frequency doors subject to severe or frequent violent use. D&D separately reports a 300,000-cycle test result for the handle series.
Exceeds commercial grade requirements for high-traffic fire doors.
EN 1634-1: doorset fire performance
183 min wood composite·260 min steel
 
D&D reports that the lever hardware was included in documented fire-door assembly tests reaching 183 minutes for a timber-composite assembly and 260 minutes for a steel assembly.
Approved for CE-marked fire door assemblies across EU markets.
EN 1670: corrosion screening
240-hour neutral salt-spray result
 
EN 1670 classifies building-hardware corrosion resistance using neutral salt-spray testing. A 240-hour result corresponds to very-high corrosion-resistance screening
Ensures long-term performance in humid and coastal environments
The D&D proof module
Ask for the report set—not a certificate logo
A buyer should be able to trace a proposed handle back to documents, drawings and installation details. For project review, request the current evidence pack and check:
  • Model scope: Which DDTH models and lever geometries are listed or technically assessed.
  • Doorset scope: Timber-composite or steel construction, leaf details, fire duration and recorded criteria.
  • Hardware scope: Rose/Escutcheon, spindle, screws, lock or latch, protection materials and installation.
  • Change control: Whether a finish, material, dimension or internal-part change remains within the evidence.

Approval rule: 
Match the exact model, material, finish, rose/escutcheon, spindle, fixings, lock/latch, door construction and installation method to the applicable document.
Request the Full Test Report
12 Certified Models
Compare the D&D DDTH001–DDTH012 handle models
All models in this series are made of stainless steel and have undergone independent testing, 
meeting the standards of BS EN1906,  EN1634 and EN1670.  They can meet the fire door specification requirements in the European Union, the United Kingdom, the Middle East and other regions.
U-Shaped Hollow Commercial Lever
A practical starting point for high-traffic commercial and back-of-house openings.
Ask about DDTH001
Exterior-Style Lever
 
For entrance and exterior-facing schedules that call for a clean tubular stainless-steel form.
Ask about DDTH002
 Privacy-Lever Profile
 
For privacy-function schedules such as guestrooms and staff facilities, subject to lock compatibility.
Ask about DDTH003
Entry / General-Purpose Lever
 
A curved profile for general internal and entry-door schedules.
 
Ask about DDTH004
Modern Commercial Interior Lever
For office, hospitality and institutional interiors with a straight contemporary brief
Ask about DDTH005
Modern Decorative Lever
 
A softer curved profile for front-of-house projects that need more visual character.
Ask about DDTH006
European Exterior Lever
 
An angular European-style profile for entrance and external-door schedules.
 
Ask about DDTH007
Geometric Privacy Lever
 
For coordinated internal or external schedules that call for a crisp architectural form.
Ask about DDTH008
Guestroom / Interior Lever Set
A clean linear option for hotel guestrooms, apartments and other interior room schedules.
Ask about DDTH009
Hotel / Institutional Lever
A straightforward round lever for repeated-use indoor openings.
 
Ask about DDTH010
Satin-Brass Design Lever
A warm-finish starting point for premium hospitality and public interiors.
 
Ask about DDTH011
Passage / Room Lever
A compact straight lever for general passage and room-door schedules.
 
Ask about DDTH012
Procurement Decision Guide
Technical Compliance Guide
Use this checklist and comparison data to evaluate fire-rated door handle suppliers before placing your order.
Supplier Verification Checklist
Verification progress
  Verify EN1906 grade matches your door traffic level 
    (Grade 3 for medium, Grade 4 for heavy use)

  Confirm EN1634 test report covers your specific door material type
     (wood composite vs. steel)

  Check EN1670 corrosion rating suits the installation environment
    (coastal, humid, or industrial)

  Request third-party test certificates from accredited labs — not just self-declared compliance

  Validate handle spindle dimensions match your door thickness
    (standard 35–54mm range)

  Confirm CE marking documentation for EU market distribution and building inspector approval
D&D Hardware vs. Industry Average

Side-by-side performance data across key EN standard metrics.

Test Standard
D&D Hardware
Industry Average
Cycle Test (EN1906)
300,000 Cycles
100,000 - 200,000
Fire Rating (EN1634)
183min / 260min
60min - 120min
Corrosion Resistance
240 Hours (Grade 4)
96 - 120 Hours
Data sourced from third-party accredited laboratory test reports. Industry averages reflect typical range across major Chinese door handle manufacturers exporting to European markets.
View full certification details
Factory Capability
Built for Scale. Engineered for Precision.
Our vertically integrated manufacturing facility delivers certified fire-rated door handles at volume — from raw alloy to export-ready product, all under one roof.
CNC Precision Machining Line
Each handle of the D&D fireproof door starts from our CNC production workshop. We have multiple precision machines to enhance the size accuracy of the products. Our in-house mold team is responsible for designing and maintaining all cutting fixtures, ensuring quick switching between different models and avoiding the common quality fluctuations often encountered in outsourcing processing.
For more finishes options, please contact D&D
13+ Finish Options Workshop
Custom colour matching is available for project-specific requirements — we can develop bespoke finishes from a physical sample or Pantone reference within 10 working days.
 Multiple CNC Precision Machines
 0.01mm Tolerance Accuracy
 ISO 9001 Certified Quality System
Built for the buying team
One page, different decisions
Fire-door manufacturers
Request the model-to-report matrix, component details, drawings, sample and change-control confirmation before integrating the handle into a doorset
Review a doorset
Architects and consultants
Use the standards module and six-step guide to write a performance-based requirement that separates duty, fire evidence and corrosion resistance.
Build a submittal list
Contractors and project buyers
Send the door schedule, lock or latch information, quantity and approval deadline so D&D can recommend an opening-specific configuration.
Request a recommendation
Ironmongery distributors
Shortlist the twelve models, finish needs and annual demand, then discuss samples, documentation, packaging and replenishment terms.
Discuss distribution
Door-hardware brands
Discuss finish coordination, logo/packaging requirements and a controlled model platform without separating OEM development from compliance review.
Discuss OEM support
Facility and maintenance teams
Keep the approved model and component information available so replacement hardware can be checked against the original door evidence.
Read replacement FAQ
Why work with D&D
A shorter path from product search to an evidence-backed quotation
01 —— Evidence before approval
Ask for the applicable EN 1906, EN 1634 and EN 1670 documents for the proposed model and configuration, not a generic certificate image.
02 —— Door-schedule review
D&D can review the lever, lock or latch, spindle, rose/escutcheon, fixings, door construction and fire duration as one selection problem.
03 —— Twelve-model platform
DDTH001–DDTH012 provide coordinated starting points for commercial, hospitality and institutional door schedules.
04 —— One hardware conversation
 
D&D also supplies EN-standard locks, hinges, closers, cylinders and panic hardware, helping the buyer discuss interfaces with fewer handoffs.
05 —— OEM and project support
 
Model selection, finish coordination, samples, packaging and quotation can be discussed against the buyer’s quantity and approval programme.
06 —— Commercial terms confirmed per quote
MOQ, sample timing, production timing, packing and shipping terms should be reconfirmed for the selected model, finish and order quantity.
Frequently asked questions
Answers procurement teams need before approving an EN fire rated door handle

（1）Can I obtain copies of your EN test reports?

Yes. We provide full BS EN1906 cycle test reports, EN1634 fire resistance certificates, and EN1670 salt spray test documentation to all verified buyers. Reports are issued by accredited third-party laboratories and can be shared via email or included with sample shipments.

（2）What is the minimum order quantity?

（3）Can you provide OEM branding services?

（4）Can D&D support samples, finishes, packaging or private label?

（5）Do you provide samples before placing bulk orders?

Get In Touch
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Get Famous Branded Quality at Factory Cost 12th Floor, Building 2, No.898, KeChuang Technical Zone,Jianghai Dist.Jiangmen City,Guangdong,China
   +86 139 2903 7292
   +86 139 2903 7292
  +86 139 2903 7292
 David Jian(Managing Director)
 Ms Judy(Financial / Account Dept. )

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