2012年5月8日星期二

Popular Tungsten Ring

Tungsten rings are the most wear resistant rings available on the planet. Tungsten is about 10 times harder than 18K Gold, 5 times harder than tool steel, and 4 times harder than titanium.
Tungsten measures between 8 and 9 on the Mohs hardness scale, due to their extreme hardness, tungsten rings will hold their shape and shine longer than any ring on the market.
Here shows the popular tungsten ring:

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