5ml,浓度:20 mg/ml 溶剂水 5ml,浓度:20 mg/ml 溶剂甲苯 5ml,浓度:20 mg/ml 溶剂氯苯 5ml,浓度:20 mg/ml 溶剂环己烷
500mg,粒径:5-25 nm 1g,粒径:5-25 nm
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