
We're the People Who Actually Make Your Parts.
No trading desk. No layers of agents. Just a 290,000 sq ft. factory floor full of engineers, machinists, and problem-solvers. This is who we are.
We're a Factory, Not a Trading Company.
Let's be blunt: this business is crawling with middlemen. It’s hard to know who you’re actually buying your fittings from. That's why we started Yuhuan Dongfei Machinery Co., Ltd. back in 1998 - to be the real deal. As Delphi Fittings, we offer North American distributors and OEMs a straight line to the factory floor.
We built this place for the serious B2B buyer who's done with the runaround and just wants a rock-solid supply of quality parts at a fair price. This has been our game for over 25 years. Our partners don't call a sales office; they call the factory. That's why they stick with us.

The Engine Room: What 290,625 sq ft. Actually Looks Like
Anybody can claim they have "quality." We enforce it. Our factory is where the talk stops and the work starts. We're not just assembling parts somebody else made; we're turning raw bar stock into finished fittings with a fleet of over 400 machines, including 160+ precision CNCs that run day and night.
Our biggest advantage? We run our own zinc-plating plant right here on-site. We don't ship our parts out and hope for the best. We control the entire process to guarantee every fitting has the corrosion resistance you spec'd. That's what real manufacturing control looks like.
Our Team is Built of Makers.
This isn't just a building full of machines. It's a team of over 200 engineers, machinists, QC specialists, and logistics pros who live and breathe hydraulic fittings. We're the people who get on the phone to answer your technical questions, who dial in the specs for your custom OEM parts, and who personally check your shipment before it leaves our dock. We're your boots on the ground in Asia.
Our Operating Principles (The No-BS Version)
Quality is a Mandate
ISO 9001 is the starting line. The real work happens on the floor with calipers and spectrometers, not on a piece of paper.
Your Problem is Our Problem
We’re built for partnership. That means straight talk, fair pricing, and a real commitment to solving your supply chain headaches.
Smarter Process, Better Part
We invest in automation not just to be faster, but to make a more consistent, reliable fitting, every single time.
Direct, Honest Partnership
You're not talking to a sales rep in some high-rise. You're talking to the people who actually make your parts.
Built for Global Logistics
Getting parts from our dock to yours without a headache is part of the job. We know how to handle it.
Ready to Work with the Real Factory?
Stop dealing with middlemen and start building a supply chain you can actually count on. Talk to the team that machines, plates, and tests your hydraulic fittings. We're ready to get to work.
Talk Directly to Our Team See What We Make