Dongguan Yyi Technology Co., Ltd.
Dongguan Yyi Technology Co., Ltd.
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When precision meets durability — that’s YYI Tech. Our CNC stainless steel parts are trusted by engineers and product teams around the world for their accuracy, strength, and exceptional surface finish.
Whether you're prototyping a new product or scaling production, we’ve got your back with fast turnaround, consistent quality, and factory-direct pricing.
Precision CNC Machining – Tolerances down to ±0.01mm
Material Mastery – SS304, SS316, SS303 & more
Corrosion Resistance – Built to endure harsh environments
Global Shipping – Fast delivery, no matter where you are
Flexible Production – From single prototypes to mass runs
Our stainless steel parts are used in:
Medical devices & surgical tools
Automotive engines & fuel systems
Aerospace fasteners & supports
Consumer electronics housings
Automation & robotics parts
From simple brackets to complex 5-axis machined housings — we do it all.
Choose from a variety of stainless steel grades:
SS304: Great all-purpose strength and corrosion resistance
SS316: Marine-grade, ideal for harsh chemical or salt environments
SS303/416: Excellent machinability for intricate designs
Finish options include:
Polishing
Bead blasting
Passivation
Electropolishing
Q: Can you work with my 3D files?
A: Absolutely. Send over your STEP, STL, or DWG files, and our engineers will take care of the rest.
Q: What's your turnaround time?
A: Typically 7–15 working days, depending on complexity and quantity.
Q: Do you ship internationally?
A: Yes, we ship worldwide via DHL, FedEx, or sea freight for bulk orders.
Q: Do you offer surface treatment or post-processing?
A: Yes, we offer a range of finishes including polishing, anodizing, and custom coatings.
Real Factory Pricing – No middlemen, no markups
Instant Engineering Support – Free DFM feedback on your design
Guaranteed Quality – Each part inspected before shipment
Flexible MOQ – Start small, scale big