Drilling, turning, countersinking, shaving, planing, lapping, broach, dressing, sawing, grinding, sharpening, etc. of metallic pieces
Manufacture of electric appliances for signs, controls or commands for roads, railways, waterways, port installations, and for airports
Wholesale trade of general furniture hardwares (nails, wires, fastening, bolting, etc.), of hand tools (hammers, saws, screwdrivers, etc.) and of electroportative tools
Production of communication devices
Production of cog wheels, bearings and other types of gear material