19 Non-metal building materials, namely, reinforcing cages, reinforcing netting, reinforcing mats, tie bars, compressional bars and tension or pressure braces and supports for connecting two concrete elements, punching reinforcements, pipe muffs, and screws and all being composite materials for use in building construction; wall cladding components not of metal for building; displacement elements, not of metal, in the nature of molds for producing cavities in concrete parts, in particular displacement elements of plastic, wood and cardboard; gravel; ready mixed concrete; building materials and building elements of cement-bound material and concrete, namely, fibre concrete panels, posts, profiles, and pipes for reinforcing materials and formwork; formwork and formwork elements in the nature of scaffolding for concrete construction, namely, formwork, formwork elements and formwork tubes of cardboard and fiber reinforced plastic; non-metal formwork material and formwork auxiliary material for concrete construction, namely, spacers, distance pieces for reinforcements, connecting pieces, namely, adapter sleeves for structural steels and connecting sleeves for crimp pins or keyed joints of structural steels, air space anchors, wall cramps for facades or for insulating material; non-metal building materials, namely, cavity wall ties; non-metal wall ties for facades and insulating materials; building articles of concrete, namely, panels, posts, profiles, pipes, shaped parts of fibre concrete for building purposes; shutters not of metal for concrete; shutters not of metal; building materials of plastic for steel-reinforced concrete and masonry construction, namely, elastomer bearings for seismic isolation of buildings, expansion joints for floors and walls for forming indentations in joint areas; non-metal matrices in the nature of non-metal material sheets for creating surface patterns in concrete; mortar for building; non-metal reinforcements for concrete and wood building, namely, plates, rods and bars; non-metal connection elements for cantilever plates, namely, non-metal brackets; non-metal stair connecting elements, namely, staircase crossing elements in the nature of stair landing bearing; non-metal stair connecting elements, namely, staircase crossing elements in the nature of insulating pads sold as a unit with connecting support panels for use between landing and staircase walls; non-metal stair connecting elements, namely stair flight connecting pads; non-metal stair connecting elements, namely stair flight decoupling supports; non-metal permanent formwork tables; non-metal expansion joints for floors and walls; non-metal reinforcing cages for building; non-metal reinforcing nets in the nature of reinforcing mats for buildings, concrete and pipes; reinforcing mats and other pre-fabricated reinforcing elements for building purposes, not of metal, namely, non-metal grids and non-metal grates; non-metal punching shear reinforcement for building; framework for building, not of metal, namely, slab bearing pads, wall bearing pads, staircase bearing pads and wall securing elements, staircase bedding; fire protection materials, not of metal, for use in building, namely, fire-resistant panels for joints or structure connections; spackling compound, in particular mastics for soundproof building elements; sound-absorbent non-metal acoustic wallboard with fibre concrete coating; non-metal fire-resistant boards for construction