EU Trademark Classification EU19 Building materials Glazing units (Non-metallic framed -) Class 19 Glazing units (Non-metallic framed -) 39831 非金属框装玻璃单元 Chinese 非金属框装玻璃单元 English Glazing units (Non-metallic framed -) Site ref. 39831 Class 19 Included in Harmonised Database (HDB)