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北京代理沸石进口清关|操作手续|解决进出口痛点
1932年,McBain提出了“分子筛”(Molecular sieve)的概念,表示可以在分子水平上筛分物质的多孔材料。沸石用作分子筛,可以吸取或过滤其他物质的分子。虽然沸石只是分子筛的一种,但是沸石在其中最具代表性,因此“沸石”和“分子筛”这两个词经常被混用。
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