About
Built and Verified Under One Roof
GUANGDONG YIJIA PIPE INDUSTRY CO., LTD. manufactures liquid cooling piping systems, CDU manifolds and IDC secondary-side loop networks from its factory in Foshan, China.

The factory
Forming, Welding, Sizing and Testing On Site
Our Foshan workshop runs automated forming, welding, sizing and test equipment, with an on-site laboratory for material and dimensional verification. We use prime virgin steel from named mills, with heat numbers traceable on every batch.
- 100% helium leak testing on custom liquid cooling assemblies before shipment
- Hydraulic pressure testing, flattening / widening ductility checks and online ultrasonic scanning
- EN 10204 3.1 MTC documentation for chemical composition and mechanical values
- OEM / ODM with custom CAD drawings and engineering samples


Workshop photography: clean originals only. Six supplied photos carried a watermark camera overlay and are excluded.
Company facts
What We Can State Publicly
Figures supplied by the owner and by the existing Yijia Pipe website.
Figures supplied by Yijia Pipe. Project references are de-identified by request.
Compliance
Certification Wording, Stated Precisely
We describe what each document actually covers.
| ISO 9001 | Quality management system compliance |
|---|---|
| NSF / WRAS standards | Potable-water material and component standards - material level, not a liquid cooling approval |
| DVGW W534 | Press-fitting test standard - fittings are described as tested, not as certified systems |
| Mill Test Certificates | EN 10204 3.1 material traceability: chemical composition and mechanical values |
None of these is a system-level liquid cooling certification. Do not present them as such in advertising or tender documents.
Next step
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Ask for a video walkthrough, a test-record sample or an engineering call.