Machines for construction and parts and fittings therefor; saws [machines] for cutting concrete, granite, roof tiles, ceramic tiles, marble, natural stones, bricks, blocks, asphalt, iron and porcelain and parts and fittings therefor; power-operated rotary saws for cutting unhardened concrete and parts and fittings therefor; saws [machines], namely wall saws, wire saws, floor saws, flat saws, tile and masonry saws, and parts and fittings therefor; core drilling machines and parts and fittings therefor; concrete- and floor grinders [machines]; polishing- and grinding machines for construction purposes and parts and fittings therefor; vacuum cleaners for construction purposes; dust extractors [machines]; slurry vacuums; air scrubbers [machines]; dust pre-separators [machines]; dust and slurry machines for cleaning; concrete vibrators for industrial purposes; trowels [machines]; waste-, asphalt- and soil compactors; ground surface finishing and compacting machines; screeders [machines]; concrete screeders [machines]; remotely controlled demolition machines and parts and fittings therefor; all of the foregoing in the field of construction.;