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Bart 时间: 11-16 04:27   主题:无标题
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Cora 时间: 11-16 04:26   主题:无标题
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kyhni spb_ 时间: 11-16 04:26   主题:кухни спб
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Twyla 时间: 11-16 04:25   主题:无标题
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Article 1: The Enduring Legacy of Tungsten in Jewelry Making
Tungsten, a metal as tough as its name suggests—derived from the Swedish words for "heavy stone"—has carved a niche in the jewelry world that rivals gold and platinum in durability but surpasses them in resilience.
Tungsten rings, first popularized in the early 2000s, represent a modern evolution of ancient metallurgical artistry. While Egyptians adorned themselves with gold for its malleability, and Romans prized iron for its strength, tungsten carbide—the alloy form used in rings—emerged from 20th-century industrial innovation. Discovered in 1781 by Carl Wilhelm Scheele, tungsten's journey to finger adornment began with its use in lightbulb filaments and cutting tools, thanks to its melting point of 3,422°C, the highest of any metal.

The appeal of tungsten rings lies in their unyielding nature. Unlike softer metals that bend or scratch under daily wear, tungsten withstands the rigors
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kyhni spb_ 时间: 11-16 04:25   主题:кухни спб
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kyhni spb_ 时间: 11-16 04:25   主题:кухни спб
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kyhni spb_ 时间: 11-16 04:25   主题:кухни спб
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kyhni spb_ 时间: 11-16 04:25   主题:кухни спб
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