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Friday, May 22, 2015

Niobium: dream material for Jewelers


[otw_is sidebar=otw-sidebar-1] Niobium is a jeweler's dream metal for many reasons. highly resistant to chemical attack very pure kind of metal - has no nickel, no alloy super hypoallergenic - so much so that many people who are allergic t...
http://bit.ly/1Koblmi

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