building materials of metal, namely, building boards, ceiling panels and tiles of metal, wall panels and tiles of metal, wall claddings of metal, and metal parts and fittings for all the aforesaid goods, namely, suspension grids, profiles and runners, hangers, fixing brackets and plates, fixing connectors and clips

sound and/or heat insulating mineral wool for buildings

non-metallic building materials, namely, building panels for walls and ceilings; building slabs for walls and ceilings, ceiling tiles of mineral fibers, wall tiles of mineral fibers, and parts and fittings for all the aforesaid goods sold together with the goods as a unit, namely, suspension grids, profiles and runners, hangers, fixing brackets and plates, fixing connectors and clips