Machines and machine tools; engines, other than for land vehicles; machine coupling and transmission components (except for land vehicles); foundry machines; ore treating machines; industrial manipulators (machines); metalworking machines; electromechanical apparatus and valves (machines); steel production apparatus and installations; steelmaking apparatus and installations; compressed air machines; feeding devices for steelmaking production lines; conveyor belts; drive chains other than for land vehicles; transmission chains other than for land vehicles; control mechanisms for machines, engines or motors; hydraulic and pneumatic controls for machines and motors; hydraulic or pneumatic devices for feeding materials to steelmaking production lines; heat exchangers (parts of machines); metal forming machines; machines for producing metals; apparatus and machines for mixing and alloying metals and steel; apparatus and machines for supplying steel or metals; rotary apparatus and machines for supplying alloying ingredients for steel or metals; apparatus and machines for injecting gases in industrial or steelmaking processes

Apparatus for heating, steam generating, ventilation and water and air distribution; apparatus and installations for heating and/or reheating steel or metals; regulating and safety accessories for gas conduits and gas apparatus; gas purifying apparatus; pipes (parts of heating installations); gas conduit installations; heating apparatus for solid, liquid or gaseous fuels; heating elements; gas condensers (other than parts of machines); loading apparatus, frames, shaped fittings and supports for installations for heating steel or metals; gas jets; gas burners; gas scrubbers (parts of gas installations); non-automatic bleed valves for heating facilities; gas or liquid tanks under pressure; thermostatic valves (parts of heating installations); apparatus and machines for injection of processing gas for steel or metals

Treatment of materials; materials treatment information; treatment of metal or steel; mixing and alloying of metals or steel; thermal treatment of metal or steel; decarburization and desulphurization of metal or steel

Scientific and technological services and related research and design services; industrial analysis and research services; architectural consultation; drawing up of construction plans; technical project studies; expertise activities; engineering; mechanical research; technical research; scientific, technical and mechanical research concerning control of heat of steel and metals, treatment of steel and metals, alloying and thermal treatment of steel and metals and in general concerning steelmaking