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国标一号银和纯银什么区别
更新时间: 2020-11-09 00:00:00  

国标一号银和纯银的区别是国标一号银是纯度为99.99%的白银,纯银有925纯银和999纯银两种之分。925银是指白银纯含量为92.5%,999银是指白银的纯含量为99.9%。纯银过于柔软,不易铸造成心仪的首饰造型。

关键词: 国标 什么 区别

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