Concrete; concrete building elements being concrete; framework, not of metal, for building; materials for making and coating roads, namely, road asphalt, polymeric bitumen emulsions for road surfaces; cement slabs; cement posts; partitions, not of metal for building; buildings, not of metal for building; cornices, not of metal; manhole covers, not of metal; stair-treads, not of metal; posts, not of metal, for power lines; non metal grave slabs, namely, tomb or grave enclosures, not of metal; ...