EU Trademark Classification EU01 Chemicals Additives (Chemical -) for use in waterproofing concrete Class 01 Additives (Chemical -) for use in waterproofing concrete 938 混凝土防水用化学添加剂 Chinese 混凝土防水用化学添加剂 English Additives (Chemical -) for use in waterproofing concrete Site ref. 938 Class 01 Included in Harmonised Database (HDB)