fired ceramic tiles, tiles of - enamel sandstone, gres, clay, gypsum, ceramic and ceramic enamel, earthenware, glass, all for wall, floor or ceiling, wall panels not of metal; ceramic wall panels; non-metal roofing panels, non-metal ceiling panels, non-metal steps, staircases, non-metal window frames, non-metal door frames, non-metal window casements, non-metal door casings, non-metal castings; statues of stone; statues of marble; stones; window glass; window panes; glass panels; insulated gl...