Hi! We are DG Proto

One-Stop Manufacturing 

We are a professional CNC machining service provider specializing in high-precision custom parts and scalable production for global industries. From CNC machining to surface finishing, heat treatment, EDM, wire-cutting, and assembly, DG Proto offers a complete, one-stop manufacturing solution.

Based in the Pearl River Delta, one of the world’s most advanced manufacturing hubs, DG Proto integrates three core production systems to deliver seamless, end-to-end services — from design optimization and precision machining to post-processing, full-process quality control, and global delivery.

Our integrated manufacturing system is built on unified management, standardized quality control, and coordinated delivery:

1. Core Production Base
Our self-operated precision machining facility focuses on high-complexity, high-tolerance parts. Equipped with advanced 5-axis and 4-axis CNC machines, as well as in-house capabilities for surface finishing, heat treatment, EDM, and wire-cutting, we handle demanding custom projects from start to finish. Our engineering team oversees every step, ensuring strict quality control and reliable lead times.

2. Strategic Flagship Partner
We collaborate closely with publicly listed manufacturing partners. With certifications including ISO and IATF 16949, this facility supports high-volume and high-standard production while offering complementary post-processing capabilities, ensuring both capacity and compliance for large projects.

3. Supporting Production Network
A network of carefully selected and contracted workshops provides flexible support for small-batch and rapid production needs. Our QC team conducts continuous inspections to maintain consistent quality and fast turnaround across all production and post-processing stages.

With years of experience serving international clients, our team combines deep technical expertise with a strong understanding of global standards, compliance, and logistics.

From quotation to delivery and after-sales support, you work with one dedicated partner — DG Proto. No need to coordinate multiple suppliers. With one collaboration, you gain access to a complete, reliable manufacturing system covering every step — from CNC machining to finishing, treatment, and assembly.

We turn complex ideas into precision-engineered parts — with speed, consistency, and trust.

 

est.

2017

A decade of expertise

1000

+

Successful cases

High level of competence

High Level of Precision & Expertise

With years of experience in precision CNC machining, we help turn your concepts into high-quality, production-ready components. Our team specializes in delivering parts with tight tolerances, consistent accuracy, and reliable performance. From prototyping to low- and medium-volume production, we ensure every detail meets your engineering and quality requirements.

We are committed to continuous improvement, advanced manufacturing technologies, and strict quality control processes—ensuring your products are not only manufacturable, but also optimized for real-world applications.

Prototype qualification
100%
production yield
≥99%
on-time delivery
98.5%
customer complaint rate
≤2%
Equipment
160+
Square Meters
12,000 ㎡
Experience
20+

Documented Quality Control

We inspect parts throughout production, from incoming materials to final inspection. Dimensional reports, material certificates and first article inspection reports are available according to project requirements.

Support for International Projects

Our team works with customers in Europe and other international markets. Rosie provides a direct English-speaking contact for drawing review, quotations and project updates.

Machining and Finishing Coordination

Finishing Coordination Our Dongguan facility supports precision CNC machining. For projects requiring plating or other processes, we coordinate the relevant group facilities and review the finished parts against the agreed specifications.

Cooperation Partner

Through in-depth international exchanges and cooperation, we has established extensive and lasting partnership with customers in Europe, America, Mexico, Asia Pacific, Middle East.

Company Gallery

DG Proto is the international brand of Dongguan Jiaoyang Technology Co., Ltd. Our manufacturing facilities under common ownership are located in Dongguan, Shenzhen, Guangzhou and Anhui, China.

With capabilities in precision CNC machining, die casting, 3D printing, mold making, injection molding and surface finishing, we support custom parts from prototypes to volume production.

Certificates by Authority

Quality & Certification

Each of our manufacturing facilities holds its own ISO certification. Our Dongguan precision machining facility is certified to ISO 9001:2015. Across our facilities, we use incoming, in-process and final inspections to control product quality. Inspection reports and material certificates are available according to project requirements.

Get Your Project Started Today

Collaborate with DG Proto on accurate and dependable production that fits your requirements. Our highly skilled team employs the latest technology and high standards to produce superior quality parts in a fast and cost-effective manner to turn your ideas into reality on time.
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