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WOZUIMEI Chinese Style Retro Ring 925 Sterling Silver Jewelry Bu


WOZUIMEI Chinese Style Retro Ring 925 Sterling Silver Jewelry Bu


Product description


Material: silver
Style: Vintage
Modeling: geometric
Treatment process: sterling silver
Applicable gift-giving occasions: opening ceremony
Style: Unisex
Mosaic material: not inlaid
Quality of precious metal: S925
Purity: 925 silver
Colour: Black
Size: Adjustable opening
Weight: 6.3g
Size: width: 1.0cm

WOZUIMEI Chinese Style Retro Ring 925 Sterling Silver Jewelry Bu

How small do you need? They've told us plenty of times it can't be done, until we actually do it. Try us and see!

The micro-manufacturer of choice for companies, researchers, and entrepreneurs who value ...

You learn a thing or two after being in business for more than 30 Years

why choose us

Why choose Potomac?

1 micron


Our broad range of tools which include lasers, micro CNC, embossing/replication, alignment and bonding provide our customers with a one stop shop for their micro parts with features as small as 1 micron.

24 hours


Stop wasting time and money by waiting for your project to be completed. With our expedited micro machining services, we can promise a 24-72 hour turnaround on your project. Email us your drawings or use our new InstaQuote tool for immediate pricing and ordering capabilities.

Value Innovation


Our R&D Team is recognized as one of the best when it comes to developing new manufacturing technologies and we have a strong track record of helping our customers bring their products to the market quickly and cost-effectively.

what we do

Our Work speaks for itself

Rapid Turn Microfluidics – Herringbone mixer

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Trusted by leading companies,
researchers and entrepreneurs.

Excellent work, fast, and reasonably priced. The shop I used previously left rough edges, visible burning, and significant metal flashing around the edges. Potomac Photonics is in a completely different league and since I’ve started using them, the results have been much better. I’ve had them do everything from precise optical cut-offs to basic mechanical…

Ben Cramer, Joint Center for Earth Systems Technology. University of Maryland, Baltimore County


I could have made these (shadow masks with 10-micron diameter holes) myself in the lab, but the learning curve was high for the size of micro hole drilling we needed. That’s why I sought out Potomac Photonics. Their capabilities allowed me to save the time and energy of doing it myself.

Jean Anne Currivan, MIT Research Assistant


Thank you so much for helping us with our hummingbird tools. I can’t tell you how much people appreciate the precision of the Tarsus Gauge you all made for us. I just sent some gauges down to Costa Rica and Argentina for researchers there and they are thrilled to be better able to precisely measure…

Lee Rogers, Hummingbird Monitoring Network


We are developing a robotic capsule endoscope which is capable of mobility within the gastrointestinal tract. . . Potomac Photonics produces micro-drilled polyimide sheets that we use as molds to fabricate the micro-patterned polymers. . .

Levin Sliker, Graduate Research Fellow at the University of Colorado, Boulder


The resolution of this 3D printer was much higher than what we had in our onsite lab. Working with tolerances in the 1 – 2 thousandths range gave us the parameters we needed to fulfill the design requirement. . . 3D printing can’t always do everything we need, but it is a great tool and…

Marton Varady, CryoPop’s Project Manager


Potomac Photonics expertise and expediency enabled us to both deliver our flight unit calorimeter spectrometer insert on schedule and the opportunity to test in advance our proposed alignment method in Japan.

Meng Chiao, NASA


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