EU Trademark Classification EU01 Chemicals 工业用氢氧化镁（3580） Class 01 工业用氢氧化镁 3580 Chinese 工业用氢氧化镁 English Magnesium hydroxide for industrial use Site ref. 3580 Class 01 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)