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Dongji is a leading technical patents certified manufacturer with R&D engineers reviewing documents in our precision engineering laboratory
Innovation & Certification

100+ Technical
Patents. Certified
for the World.

As a leading technical patents certified manufacturer driven by in-house innovation and certified engineering, Dongji holds 100+ technical patents and 8 international certifications — ensuring every product meets global safety and quality standards from day one.

Request Certification Info → View Capabilities →
100+
Technical
Patents
Guangdong Province
IP Demonstration Enterprise
Innovation Track Record

A Wall Built on
15 Years of R&D

Since 2011, Dongji has systematically built one of the largest patent portfolios in China's self-service hardware industry. Every patent represents a solved engineering problem — and a competitive moat for our OEM customers.

Dongji Intelligent Equipment patent wall displaying over 100 technical patent certificates covering smart terminal and sheet metal innovations
Dongji Patent Portfolio 100+ Technical Patents
& Counting
100+
Technical Patents
Registered & Active
8
International Certifications
CE · UL · FCC · RoHS +
15+
Years of Engineering
Innovation Since 2011
50+
Countries Where
Certified Products Ship
Dongji holds the Guangdong Province Intellectual Property Demonstration Enterprise designation — one of China's highest provincial recognitions for systematic IP management and innovation output. Our patent portfolio covers structural innovations in sheet metal fabrication, smart vending machine mechanisms, self-service locker systems, and electro-mechanical integration.

Partnering with a technical patents certified manufacturer means your OEM/ODM products are built on a foundation of proprietary, defensible engineering — not generic components available to any competitor.

International Certifications from a technical patents certified manufacturer

8 Certifications.
Every Major Market.

From CE for Europe to UL and FCC for North America, KC for Korea — every certification is obtained in-house with our own QC lab pre-screening, reducing third-party lab time and cost for OEM customers.

Dongji Intelligent Equipment CE certificate collection showing 7 major international safety and quality certifications including ISO9001 CE UL FCC ETL SGS RoHS
Official Certification Documents ISO9001 · CE · UL · FCC · ETL · SGS · RoHS · KC
In-House Pre-Screening No third-party lab delays
Dongji Intelligent Equipment ISO9001 quality management system certification document
ISO 9001 Quality Management System — international standard for consistent manufacturing quality
Dongji Intelligent Equipment CQC China Quality Certification Centre certification document
CQC China Quality Certification Centre — domestic market compliance and safety standard
Dongji Intelligent Equipment CE European conformity certification document for export to European market
CE Mark European Conformity — mandatory for all products entering the EU market
Dongji invention patent certificate for color-coated steel foam box body design for automatic vending machine
Invention Patent Color-coated steel foam box body for automatic vending machines — structural innovation
Dongji invention patent certificate for triple anti-theft box mechanism for automatic vending machines
Invention Patent Triple anti-theft box for automatic vending machines — security mechanism innovation
IP
Proprietary Innovation

Invention Patents
That Protect Your Product

Dongji's invention patents are not just badges — they are engineering solutions built into the products your customers buy. When you OEM with Dongji, you inherit patented mechanisms that competitors cannot legally copy.

Dongji invention patent certificate color-coated steel foam vending machine box body structural design
Patent No. ZL ···
Dongji invention patent certificate triple anti-theft security box mechanism for automatic vending machines
Patent No. ZL ···
Invention Patent Utility Model Industrial Design Software Copyright
"Innovation is not an afterthought at Dongji — it is the engineering foundation every product is built on."
Our R&D team has filed patents across four categories: invention patents (core structural and mechanical innovations), utility model patents (functional improvement patents), industrial design patents (aesthetic and UX innovations), and software copyrights for our smart terminal operating systems.

As a Guangdong Province High-Tech Enterprise and Intellectual Property Demonstration Enterprise, Dongji operates under the highest standards of IP management — protecting both our innovations and our clients' OEM product specifications.
2011 — Founded Company established in Jiangmen, Guangdong. First patents filed in sheet metal structural design.
2015 — ISO9001 Certified First international quality certification. Production standardized across all manufacturing lines.
2018 — High-Tech Enterprise Guangdong Province High-Tech Enterprise designation awarded. R&D investment threshold exceeded.
2020 — CE / UL / FCC Portfolio Full international certification suite completed. Export to North America and Europe begins at scale.
2024 — 100+ Patents Milestone IP Demonstration Enterprise (Guangdong Province) designation. Patent portfolio exceeds 100 active registrations.
Enterprise Designations

Government-Recognized
Innovation Leader

Two of China's most respected provincial enterprise designations — awarded by Guangdong Province to manufacturers with proven R&D investment, IP output, and technical workforce qualifications.

Dongji Intelligent Equipment Guangdong Province Specialized Refined Unique and Innovative enterprise certification
Specialized · Refined · Unique · Innovative Guangdong Province
Dongji Intelligent Equipment Guangdong Province High-Tech Enterprise official certification certificate
High-Tech Enterprise Certificate Guangdong Province

What These
Designations Mean
for B2B Buyers

These are not self-declared claims — they are government-audited designations awarded by Guangdong Province. To qualify, a manufacturer must demonstrate minimum R&D expenditure as a percentage of revenue, a qualified technical workforce above a threshold percentage, and a registered IP portfolio of meaningful depth.

For international B2B buyers, these designations are a reliable proxy for engineering competence, financial stability, and IP integrity — reducing due diligence risk when selecting an OEM partner.

High-Tech Enterprise (高新技术企业) Provincial designation requiring verified R&D investment ratio, qualified technical staff, and registered patents. Renewed every 3 years through government audit.
Specialized, Refined, Unique & Innovative (专精特新) China's top SME designation for companies with niche leadership, precision manufacturing capability, and significant innovation output. Dongji's niche: smart self-service hardware.
IP Demonstration Enterprise (知识产权示范企业) Guangdong Province's recognition for exemplary IP management systems, patent filing quality, and active enforcement — protecting both Dongji and its OEM clients.
25%+ Technical Specialist Workforce Out of 300+ employees, more than 25% hold engineering or technical roles — meeting and exceeding High-Tech Enterprise workforce requirements.
Cooperative Partners

Trusted by
Industry Leaders
Worldwide

Dongji's certifications and patent portfolio have made it the preferred OEM/ODM manufacturing partner for established brands across automotive, food service, retail, and industrial sectors. 36 documented cooperative partners across Asia, Europe, Australia, and North America.

Dongji Intelligent Equipment cooperative partner photo collection showing 36 international brand partnerships and business cooperation agreements
Partnership Documentation 36+ Signed
Cooperative Agreements
50+
Export Countries
Dongji Intelligent Equipment cooperative brand logos collection showing international partner brands including BYD Gastrox and other major clients
Cooperative Brands Partners Who Trust
Dongji Engineering
Including BYD · Gastrox and 34+ others

Why Certifications Matter for your technical patents certified manufacturer

The Business Case for
Certified Manufacturing

For global B2B buyers, supplier certification is no longer optional — it is the baseline for market entry. The data shows why working with a pre-certified factory partner is a strategic procurement advantage.

88%

Growth in industrial robot installations in the metal & machinery sector 2020→2023. Certified robotic-capable suppliers are now the standard, not the premium.

IFR World Robotics 2024

71%

Of industrial automation enterprises use robotics as of 2025. ISO9001-certified suppliers with automated QC are the expected baseline for global procurement teams.

BlackBerry Enterprise Survey 2025

#1

China's global position in aluminum and zinc production — the core materials in Dongji's certified sheet metal and smart terminal manufacturing.

USGS · UN Comtrade 2024

72%

Of Southeast Asian employers expect automation to transform their operations by 2030. CE/UL/KC-certified smart terminals are essential for market entry across this region.

Statista Industrial Automation 2025

Certified. Patented. Ready.

Build on a Foundation
of Proven Engineering

Get access to full certification documentation, patent portfolio overviews, and QC lab test reports directly from a trusted technical patents certified manufacturer. Available for qualified OEM/ODM prospects after NDA — request access below.

100+ Active Technical Patents ISO9001 · CE · UL · FCC · ETL · SGS · RoHS · KC High-Tech Enterprise (Guangdong Province) IP Demonstration Enterprise 24H Certification Documentation Request NDA Available Before File Sharing
Request Certification Documents → WhatsApp Engineering Team →

hello@sheet-metal-factory.com  ·  0750-7173188

Your Trusted Technical Patents Certified Manufacturer

Finding a reliable technical patents certified manufacturer is crucial for global B2B buyers looking to mitigate risks in custom fabrication. Since 2011, Dongji Intelligent Equipment has operated a 30,000㎡ Industry 4.0 integrated facility, supported by over 300 employees and a workforce comprising 25%+ technical specialists. Our strict adherence to an in-house QC inspection lab and adherence to global safety standards allows us to deliver unmatched 0.1mm machining precision across all OEM/ODM projects.

As a recognized High-Tech Enterprise, our robust portfolio of 100+ active patents and 8 international certifications (including ISO9001, CE, FCC, and UL) establishes us as the premier technical patents certified manufacturer in the Greater Bay Area. We manage the entire 12-Step Industrial Lifecycle, from demand communication and CAD/DFM review to 24/7 robotic welding and export-grade packaging.

Ready to scale your production? Explore our full manufacturing services or contact our engineering team for a 24-hour factory-direct quote. For further insights into global manufacturing and quality standards, refer to the International Organization for Standardization (ISO) guidelines.