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如何鉴别天丝和真丝
更新时间: 2020-11-23 00:00:00  

通过燃烧的方法来鉴别,如果天丝纱线靠近火焰的时候,一旦燃烧就会产生卷曲,真丝燃烧之后留下黑色灰烬,用手一碾就会变成粉末。

关键词: 如何 鉴别 真丝

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