EU Trademark Classification EU01 Chemicals Substances (Chemical -) for cleaning brickwork Class 01 Substances (Chemical -) for cleaning brickwork 4930 砖砌体清洁用化学物质 Chinese 砖砌体清洁用化学物质 English Substances (Chemical -) for cleaning brickwork Site ref. 4930 Class 01 Included in Harmonised Database (HDB)