Non-metallic building materials for construction purposes, namely, wall boards, cladding, large format flooring materials and cladding façade panels, decking, boards, and plates of porcelain prepared with natural and ecological raw materials for coating facades, buildings, roofs, walls and floors; prefabricated boards of ceramic and porcelain for coating and building construction; nonmetal paving blocks of ceramic, sandstone, porcelain, natural or artificial stone and wood; tiles of sandston...