19 Decorative hearth extensions in the nature of fireproof tiles made of non-metal, non-combustible materials used to decorate and protect the floor surface immediately in front of fireplaces; Drywall corner bead not of metal; Non-metal architectural mouldings and finish trim; Non-metal decorative moldings and decorative trim for use in building construction; Rubber floor tiles; Stair treads not of metal; Tiles, not of metal; Vinyl tiles