EU Trademark Classification EU01 Chemicals 亚硝酸钡（1358） Class 01 Barium nitrite 1358 亚硝酸钡 Chinese 亚硝酸钡 English Barium nitrite Spanish Nitrito de bario Site ref. 1358 Class 01 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)