EU Trademark Classification EU01 Chemicals 农业用过氧化钙（1525） Class 01 农业用过氧化钙 1525 Chinese 农业用过氧化钙 English Calcium peroxide for use in agriculture Site ref. 1525 Class 01 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)