19 Non-metallic building materials, namely, concrete, waterproofing membranes for roofing, floors and walls, wood framework, finishes works, namely, wooden doors, tiles of ceramic for wall, floor or ceiling, non-metal false ceiling tiles, non-metal curtain walls; reinforcing materials, not of metal, for building, namely, concrete beams, precast wall, precast slabs, precast shafts; framework for building, not of metal, namely, wood door frames; non-metallic materials for coating roads, namely, asphalt-based coatings and sealants; materials for making and coating roads, namely, asphalt, concrete, bitumen, tar, and coatings of asphalt; binding materials for repairing roads, namely, cement; cement for furnaces; storage tanks of masonry