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怎样判断牙膏是否含氟
更新时间: 2022-05-13 09:26:54  

牙膏盒外包装上有配方列表,看一下有没有标明氟的含量,没有的话就是不含氟。如果含氟的话,标注的氟含量通常在0.05%到0.15%之间。

关键词: 怎样 判断 牙膏 是否

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