EU Trademark Classification EU01 Chemicals Surfactants for use in preserving concrete Class 01 Surfactants for use in preserving concrete 5011 混凝土保存用表面活性剂 Chinese 混凝土保存用表面活性剂 English Surfactants for use in preserving concrete Site ref. 5011 Class 01 Included in Harmonised Database (HDB)