Building and construction materials and elements, not of metal, namely, non-metal ceiling panels; paving stones; ceramic tiles; earthenware tiles; non-metal tiles; plastic tiles; vinyl tiles; stucco tiles; bricks; sidings, non-metallic; stoneware paving blocks; stoneware surfacings, namely, non-metallic flooring tiles and porcelain stoneware for covering walls; concrete bricks; stone slates; ceramic tiles for flooring and lining; wood blocks for use in flooring construction; glass blocks for ...