polishing preparation
... Cleaning preparations 清洁制剂 Polishing preparations 抛光制剂 Vitamin preparations 维生素制剂 ...
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本文介绍了一种新型的YZ - 1型氮氧化物抑制剂,可用于铜件酸洗抛光时抑制氮氧化物的生成。
A modern YZ-1 type inhibitor of nitric oxides is investigated, which can be used for brass articles in bright acid dipping to inhibit formation of nitrogen oxides.
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