EU Trademark Classification EU01 Chemicals 缓冲剂（化学品）（1472） Class 01 Buffers [chemicals] 1472 缓冲剂（化学品） Chinese 缓冲剂（化学品） English Buffers [chemicals] Spanish tampones [sustancias químicas] Site ref. 1472 Class 01 Included in Harmonised Database (HDB)