Non-metallic building materials, namely, non-metal floor panels, flooring underlayments; wall and floor covering materials, namely, wall stone, non-metallic wall tiles, ceramic wall and floor tiles; ceramic tiles; all the foregoing not being wood

non-metallic building materials, namely, wood boards, non-metal floor panels, flooring underlayments; wall and floor covering materials, namely, wall stone, non-metallic wall tiles, ceramic wall and floor tiles; ceramic tiles