EU Trademark Classification EU01 Chemicals 氧化铝[矾土]（1139） Class 01 氧化铝[矾土] 1139 Chinese 氧化铝[矾土] English Aluminium oxide [alumina] Site ref. 1139 Class 01 Included in Harmonised Database (HDB), Nice Alphabetical List, TM5 ID List, WIPO Madrid Goods and Services (MGS)