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Building materials (non-metallic), in particular natural and artificial stone, wall building materials, clinker for structural and civil engineering, non-reinforced blocks and reinforced beams and building boards of gas concrete, normal concrete, porous concrete, foam concrete or calcareous sandstone, bricks, square bricks, hollow blocks, tiles (not of metal), roofing felt, marine rubble, paving stones, road building materials, blast furnace slag gravel, blast furnace coarse crushed slag and blast furnace sand, scoria, bituminous road building materials, mineral raw materials for manufacturing building materials and for erecting structures, raw limestone gravel, limestone grit, limestone flour, quicklime, lumpy lime, calcium hydrate, gravel, gravel chippings, washed gravel and gravel chippings, fine gravel, cement, plaster, sand, concrete, lightweight concrete, dry concrete; products for plastering building surfaces, plaster, set, adhesive plaster, interior plaster, exterior plaster, insulating plaster, repair plaster, normal plaster and thin plaster, the aforesaid products mainly with a lime, cement or gypsum base, or with plastic admixtures; pitch, asphalt, tar, felt boards and felt backing strips for structural engineering purposes; dry mortar, normal mortar, thin-bed mortar, levelling mortar, facing mortar, dry concrete, liquid screed; finished components for erecting buildings, walls and ceilings (not of metal); finished components of concrete, calcareous sandstone or plastic fibre board; kits for erecting buildings, walls and ceilings (not of metal), supplementary products for erecting buildings, walls and ceilings (not of metal), namely lintels, U-shaped shells, blocks for belt rollers, socket blocks, building boards of calcareous sandstone, facing stone, timber for building, bottom levelling material for floors of gas concrete, plaster fibre boards, in particular for the construction of interiors; ceiling elements, mobile partitions, in particular of plaster fibre board, heat insulating compound systems for building, mainly consisting of mineral insulating boards, not of metal, felt boards and felt backing strips for structural engineering purposes; tiles (not of metal); reinforced concrete building elements and prefabricated travelling room units, in the form of prefabricated garages, waiting rooms, refuse deposit areas, prefabricated, travelling houses, the aforesaid room units and houses in particular of reinforced concrete and plastic; chimneys and parts thereof (not of metal); ceiling elements, mobile partitions (not of metal), in particular of plaster fibre board, facade elements and curtain walling (not of metal), in particular of plastic, transportable houses, transportable prefabricated houses, building materials, non-metallic, for houses and prefabricated houses; except building chemical additives for concrete and cement, elastic insulating materials and adhesives, sealing systems, except fire protection panels and remediation panels; except heating, ventilating and sanitary installations, and channels, pipes, containers and parts therefor