EU Trademark Classification EU01 Chemicals 钎焊焊剂（3091） Class 01 钎焊焊剂 3091 Chinese 钎焊焊剂 English Fluxes (Brazing -) Site ref. 3091 Class 01 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)