19 Artificial stone; Ceramic tiles; Chemically treated wood, namely, wood beams, wood boards, wood joists, wood rafters, wood siding, wood tile floors and flooring, wood trim, wooden beams, wooden flooring, wooden railings, and wooden wainscoting, all of the above containing a fire retardant chemical; Cork tiles and tiles of cork-based conglomerates being building materials for floors, walls and ceilings; Dado rails; Floor tiles of wood; Hard wood flooring; Natural stone and stone tile; Parquet flooring made of wood; Parquet flooring of wood; Parquet wood flooring; Vinyl flooring; Wood sports floors; Wood tile floors