EU Trademark Classification EU19 Building materials Ties (Non-metallic -) for cavity walls Class 19 Ties (Non-metallic -) for cavity walls 40796 空心墙用非金属拉结件 Chinese 空心墙用非金属拉结件 English Ties (Non-metallic -) for cavity walls Site ref. 40796 Class 19 Included in Harmonised Database (HDB)