EU Trademark Classification EU19 Building materials 非金属隔音罩（构筑物）（40671） Class 19 非金属隔音罩（构筑物） 40671 Chinese 非金属隔音罩（构筑物） English Soundproof hoods [structures], not of metal Site ref. 40671 Class 19 Included in Harmonised Database (HDB)