EU Trademark Classification EU19 Building materials 建筑用隔热玻璃（39911） Class 19 建筑用隔热玻璃 39911 Chinese 建筑用隔热玻璃 English Insulating glass for use in building Site ref. 39911 Class 19 Included in Harmonised Database (HDB), Nice Alphabetical List, WIPO Madrid Goods and Services (MGS)