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18k是多少克
更新时间: 2020-10-03 00:00:00  

18k表示的是纯度,不是重量。18K金所表示是黄金的含量为18比24,也就是百分之七十五,其余的百分之二十五为其他金属,在金饰中通常为铜、白银等等。24K金则表示纯金,当然也不是真的纯,纯度在百分之九十九以上。

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