7 Lubricators, namely, lubricating machines; conveyor belts; machine for processing and filtering slag; pneumatic transporters and installations for transport and injection of pulverulent materials by pneumatic means in a tank furnace; slag granulation machine; equipment for steelworks, namely, continuous metal casting machines, machines for recycling iron, machines for recycling steelmaking dust and sludge, machines for recovering valuable iron, zinc and other non-ferrous metal, machines for recycling non-ferrous residues, and recovering valuable metallic contents; installations and equipment for vacuum ladle treatment of cast iron and steel, namely, injection lance handling devices, injection lance exchange manipulator, ladle titling devices, gears and enclosed drives for industrial machinery, transmission gears for machines; crushing and screening installations and equipment, namely, machines for recycling iron, machines for recycling steelmaking dust and sludge, machines for recovering valuable iron, zinc and other non-ferrous metal, machines for recycling non-ferrous residues, and recovering valuable metallic contents; installations and apparatus for changing blowing lances, namely, an automatic lance changing machine and dust-extracting machinery, all intended for use in the iron and steel industry; installations and equipment for fitting a refractory lining to the interior wall of a furnace, namely, machines and lines composed thereof for the production of parts for the aforementioned machines, particularly foaming lines, die-cutting machines, molding presses, scoring machines, laminating machines, water jet cutting machines, long fiber injection machines; cranes and overhead travelling cranes for special use for iron metallurgy and metal-working; valves being parts of machines; couplings for machines, namely, stopcocks; hydraulic circuits, controls and their parts, namely, hydraulic controls for machines, motors and engines; dust removal machines for metallurgical plants and blast furnaces, namely, dust separators and vacuum shredders for clearing debris