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铝和钢哪个硬
更新时间: 2020-11-07 00:00:00  

铝和钢相比钢比较硬,钢的硬度非常高,比自然界的大部分物体都要硬。一般的钢铁器件都会被磁铁吸引,而铝几乎没有任何磁性,用磁铁一试便知。一般来讲,铝的电阻率在各种金属材料中是最低的,导电性比钢要高。

关键词: 哪个

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