19 Slabs of stone for building; armor-plating of stone for building, surfaces, namely, ornamental, natural, composite or engineered stone; staircases of stone; floor coverings in the nature of stone tiles; prefabricated stone architectural columns; wood particle boards being building materials; marble floor tiles; granite; covering sheets not of metal, namely, ornamental, natural, composite or engineered stone; marble for building, specifically for use on floors, walls, countertops and vanity tops; building construction materials of artificial or natural stone, namely, floor tiles and wall tiles; artificial stone; silica stone; marble slabs being building material; laminated silica particleboard for building; materials for covering floors in the nature of floor tiles; none of the aforesaid goods made of fibers, especially not made of glass fibers and/or stone fibers and none of the aforesaid goods for use in the field of heat or sound insulation or fire protection