7 MANIPULATORS, PACKAGERS AND FOLDERS FOR MANUFACTURED OR SEMI-FINISHED PRODUCTS; PRESSES, CASTING MACHINES WITH CURVILINEAR AND RECTILINEAR INGOT MOLD, CASTING MACHINES WITH WHEELS, SUPPORTS FOR LADIES, EXTRACTORS, STRAIGHTENERS AND SHEARS FOR DISCHARGE; MACHINES FOR STRAIGHTENINGBILLETS, BARS AND WIRES; ROLLER HOUSINGS; ROLLING MILLS, HOT AND COLD ROLLING STANDS; MECHANICAL WIRE WINDERS; MACHINES TO PRODUCE METALLIC BILLETS; PLANTS TO TREAT MINERALS AND COALS; CONVEYORS FOR INDUSTRIAL TRANSPORT OPERATIONS; PLANTS FOR THE REDUCTION OF MINERALS; MACHINES AND PARTS THEREOF FOR PLANTS TO GRIND METALS; EQUIPMENT MADE OF LIGHT OR HEAVY METALLIC STRUCTURES SUCH AS CRANES; MACHINES TO LAY RAILS; UNWINDING MACHINES, WOOD-WORKING MACHINES; REGULATORS AND REGULATORS FOR ELECTRICAL MOTORS AND GENERATORS; SERVOMECHANISMS FOR MACHINES; MACHINES TO TREAT SOLID WASTES; SOUNDPROOFING EQUIPMENT IN METALLIC PLANTS; COLD DRAWING MACHINES.