Meanwhile, produced the liquid ferric chloride used as purifying agent.
同时生产净水剂用液体氯化铁产品。
The invention relates to a formaldehyde purifying agent and a preparation method thereof.
本发明涉及一种甲醛净化剂及其制备方法。
Objective To simplify the detection method of sulfate in the water purifying agent poly aluminium chloride.
目的简化净水剂聚氯化铝中硫酸根的分析方法。
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