https://blog.wongcw.com/2022/12/09/%e7%b0%a1%e5%96%ae%e7%9a%84%e5%90%88%e9%87%91%e6%8b%bf%e4%b8%8b%e6%9c%89%e5%8f%b2%e4%bb%a5%e4%be%86%e6%9c%80%e5%a0%85%e7%a1%ac%e7%9a%84%e6%9d%90%e6%96%99%e6%a1%82%e5%86%a0/
簡單的合金拿下“有史以來最堅硬的材料”桂冠