19 non-metallic building materials, namely, stones, floor slabs, wall slabs, roof slabs, wall panels, wall elements; [ construction materials, in particular mineral raw materials, in particular limestone for use in the building industry; lime- and sandstones; ] artificial stones, in particular porous artificial stones; porous concrete; Lightweight concrete; foamed concrete; concrete; hollow blocks; mortar; [ building material made of clay, in particular bricks and roofing tiles; natural stones; cement; lime; pebbles; gypsum; pipe tissue; pitch; asphalt; tar; roofing cardboard; felt sheets and underfelts for building purposes; wood and bricks for building purposes; tiles, namely, ceramic tiles, non-metal roofing tiles; limestone grit, limestone sand, limestone chips and limestone powder as well as coarse limestone; burnt lime, lump lime, lime powder and hydrated lime; blast furnace slag chips, grit and sands, natural stone gravel and grit, hydraulic construction stones, pebbles, pebble grits, pebble sands, paving stones; ] products for plastering and insulating building surfaces, in particular facing plaster, adhesive plaster and interior plaster based on [ lime, ] cement [ or gypsum with or ] without plastic additives, dry mortar with or without plastic additives, dry mortar and dry concrete; [ bulk material for leveling floors, in particular of gas concrete; prefabricated movable houses and structural members, not of metal, both in particular of porous concrete, lightweight concrete and foamed concrete, lime- and sandstones as well as calcareous sandstone; ] prefabricated parts, not of metal, in particular prefabricated parts of concrete, namely, plates for interior works; [ gypsum fiber boards for the completion of the interior, ceiling elements and movable separating walls not of metal, in particular of gypsum fiber boards, ] cladding panels [ and curtain walls of plastic; reinforced concrete solidium chimneys and parts thereof - not of metal; construction materials, in particular calcareous sandstone, ] sand- lime bricks, large sized building plates, in particular made of calcareous sandstone and/or autoclav aerated concrete; [ prefabricated movable houses and structural members, not of metal, both in particular of calcareous sandstone; prefabricated parts, not of metal, in particular plates for interior works ]