Electric motors for machines, engines not for land vehicles; machines for the production, casting and rolling of metal products in the nature of tundishes, nozzles and parts therefor; oscillating conveyors; extraction machines for the extraction of a cast product, as a billet or a slab, from a casting mold; straighteners, namely, machines used to straighten, i e, conveying a straight direction, a cast product before rolling; travel grates, namely, machines which make a cast product advance st...