2012年3月30日星期五

Tungsten Ring

Tungsten is the only rare and exotic metal that can be permanently polished, it is about 10 times harder than 18K Gold, 5 times harder than tool steel, and 4 times harder than titanium. Due to tungsten’s extreme hardness, tungsten rings will hold their shape and shine longer than any ring on the market. 
tungsten ring

tungsten carbide ring

tungsten rings

tungsten carbide rings

tungsten alloy ring

tungsten ring

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