EU Trademark Classification EU01 Chemicals 用于聚合反应的化学品（2265） Class 01 Chemicals for use in polymerisations 2265 用于聚合反应的化学品 Chinese 用于聚合反应的化学品 English Chemicals for use in polymerisations Site ref. 2265 Class 01 Included in Harmonised Database (HDB)