EU Trademark Classification EU01 Chemicals 用于镜片的含石英涂层（2392） Class 01 Coatings containing quartz for use in lenses 2392 用于镜片的含石英涂层 Chinese 用于镜片的含石英涂层 English Coatings containing quartz for use in lenses Site ref. 2392 Class 01 Included in Harmonised Database (HDB)