Non-metal building materials, namely, natural and artificial stones for building and construction; porcelain stoneware slabs and tiles; stoneware paving blocks and surfacing; ceramic plates and tiles for floors, coverings and linings, kitchen and vanity tops, work tops and tables, counter tops, floor and wall cladding, façades, swimming pools, stairs; non-structural building materials, namely, natural and artificial stones used in decorative surface applications for countertops and vanity to...