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  • 納米膠體銀 british biocell international 查看詳細(xì)介紹

    The 2nmn colloid is too small to scatter light and the solution is clear. The remaining sizes scatter light to different degrees and the solution color changes with increasing particle size.

    更新時(shí)間：2016-12-23

    廠商性質(zhì)：代理商

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