
Frank Gao
General Manager

Dongguan, China
Meet your machining team in Dongguan

We make custom parts with in-house CNC milling, turning and inspection, and work with vetted partners for specialist processes.
Management, engineering and quality.

General Manager

Deputy General Manager

Technical Director

Quality Director
Li manages overall quality planning at OUJI. He brings 10 years of quality management experience, practical proficiency with inspection tools, and a strong understanding of machining processes.
Our inspection team and equipment
In-house equipment
Swiss-type machines are counted separately from CNC turning machines. Part size, geometry and tolerance still need a drawing review.
| Work | Who carries it out | What OUJI handles |
|---|---|---|
| CNC machining | OUJI in-house Milling, turning, Swiss-type machining and dimensional inspection. | Review the drawing, plan the setups, machine the parts and check the agreed dimensions. |
| Specialist processes | Vetted partners Sheet metal, heat treatment, plating and EDM. | Pass on the approved requirements, coordinate the partner and check the agreed finish and inspection records. |
| Before shipment | OUJI project team Finished parts and agreed records. | Check quantity, acceptance requirements, documents and packing. Resolve issues before release. |

Our quality page shows the inspection equipment and redacted sample records. Inspection methods and reports are agreed for each order.
See sample quality recordsFrom a completed job50 stainless steel parts, two CMM evaluations304 stainless steel · 3+2 machining · Datum-sequence reviewAn OUJI project · RF housing · 100 parts

This RF housing needed silver plating over a copper undercoat, with a consistent appearance both inside the cavities and on the external surfaces.
OUJI evaluated five plating suppliers. The first four did not achieve the required finish. With the fifth, process improvements focused on water purity in the plating process.
The selected partner achieved the accepted finish for the 100-part order. The customer places repeat orders approximately every six months.
See the trial photos and full projectThis case documents the manufacturing and finish-approval process. Numerical coating-thickness and RF performance results are not published.
Response within 24 hours of receiving complete project details.
Project contact
Project Support | Custom Machining & Technical Coordination
Tom Yi supports custom machining projects and technical coordination at OUJI.
Tom Yi on LinkedIninfo@ouji-tech.com+86 181 7330 9227+852 5122 3356OUJI is not currently ISO 9001 certified. Projects are managed through drawing review, in-house process planning, production follow-up, inspection coordination, documentation review, and corrective action. Project-specific reports and certificates should be confirmed before production.
Yes. CNC milling and turning samples start at 1 part. Swiss-type and micro-machining samples start at 100 parts. The production method and quantity are confirmed after reviewing your requirements.
Yes. Email your NDA for review or request OUJI’s standard confidentiality agreement before sharing sensitive files. You can start an inquiry without uploading drawings.
OUJI Industrial Technology is our public-facing name. OJTECH is the wordmark in our logo.
ISO 9001: not currently certified
Company contact details