最堅硬金屬的相關文章
最堅硬金屬的相關商品

What Is the Hardest Metal? (with pictures)
瀏覽:484
日期:2025-06-02
The hardest known metal is steel alloy, which is often made even harder by
adding carbon and other elements. With a tensile strength of 0.84 GPa (122,000
psi) ......看更多