EU Trademark Classification EU42 Scientific and technological services 非金属涂层开发（71094） Class 42 非金属涂层开发 71094 Chinese 非金属涂层开发 English Development of coatings for non-metals Site ref. 71094 Class 42 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)