发布时间:2025-01-19 20:59:09
生石膏暂时没有确定的标准。
生石膏粉比重为:CaSO4·2H2O(174)。
生石膏粉是用生石膏磨成的粉,它是一种常用的中药材,应用十分广泛,它有有清热泻火的功效。
20gp40gp40hq集装箱尺寸容积重量规格及限重各是多少
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