Una aleación de oro y platino compone el material más duro del mundo.https://buff.ly/2MPzOW2
Most wear-resistant metal alloy in the world -- ScienceDaily: A materials science team has engineered a platinum-gold alloy believed to be the most wear-resistant metal in the world. It's 100 times more durable than high-strength steel, making it the first alloy, or combination of metals, in the same class as diamond and sapphire, nature's most wear-resistant materials.
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