About OuNaiDa
Manufacturing experience, carried forward.
Tianjin OuNaiDa Transmissions Technology Co., Ltd. continues a manufacturing business developed in Tianjin around precision mechanical and transmission components.
Company profile
A CNC partner for parts that must fit and work.
Our work centers on custom CNC milled and turned components manufactured from drawings and samples. Customers include industrial equipment builders, automation integrators, distributors and maintenance teams requiring stable replacement or repeat supply.
The current OuNaiDa company name was adopted in 2025 as the business expanded its focus on precision manufacturing, technical support and international supply. The manufacturing experience behind the company reaches back to 2003 in Tianjin.


Manufacturing Roots
Mechanical transmission component supply and machining activity began in Tianjin.
Machining Expansion
Milling and turning resources expanded to support a broader range of drawing-based parts.
Process & Inspection
Additional CNC, grinding and dimensional verification resources strengthened production control.
OuNaiDa Established
The business adopted the name Tianjin OuNaiDa Transmissions Technology Co., Ltd.

How we work
Clear requirements. Practical answers.
We do not claim that every drawing is ready for production or that every tolerance needs the same process. Our role is to identify what is manufacturable, what needs clarification and which controls are necessary for the part to work as intended.
Drawing review
From your drawing
to a production-ready part.
Include material, quantity, critical tolerances, surface finish and required documents. We will review manufacturability before quotation.
Send Your Drawing ↗