19 Molded bricks, paving stones, linking paving blocks, L-shaped paving blocks, U-shaped paving blocks, concrete building blocks, prefabricated non-metal fences, cement slabs for stabilizing earth banks, concrete slabs, terrace flagstones, staircases, steps, non-metal floor tiles, pavement tiles, large paving slabs, tiles of clay, glass or ceramic for mosaics, paving slabs for vegetated pavements, interlocking paving stones, screened paving slabs for lawns, ecological pavement tiles, facings consisting of non-metal panels, garden stones, garden flagstones, concrete building materials, namely stones, blocks, bricks, posts, slabs and panels, slabs for tree holders, namely stones, blocks, bricks, posts, slabs and panels, curbstones, wall studs, non-metal palings, building elements, namely troughs for building not of metal, non-metal gutters; all these materials not made of metal and especially made of concrete and/or cement and/or stone and/or asphalt and/or ceramic and/or plastic materials and/or composite materials