Common metals and their alloys, namely iron and its alloys; transportable metal buildings; metal tubes and pipes; goods of common metal not included in other classes namely, manually operated metal tube valves not including machine parts, manually operated metal dust discharge control valves; manually operated metal pipe valves; reinforcing materials for metal pipes, namely, metal junctions for pipes, metal braces; metal tube and pipe couplings; metal storage containers for pulverulent materials used in the iron and steel and non-ferrous industries; manually operated metal valves not including machine elements

Machines and machine tools, namely casting machines and machine tools, steelworking machines, namely dust discharge machines, and steelworking machine tools; motors and engines except for land vehicles, namely motors for casting machines, motors for steelworking machines; machine coupling and transmission components except for land vehicles, namely transmission gears for machines, bearings and shafts for machines; foundry machines; ore treatment machines, namely casting machines; machines for processing metals and dusts produced by metallurgical plants and blast furnaces, namely pneumatic conveyors and injection molding machines for pulverulent materials; valves, namely parts of dust discharge machines; apparatus, valves and electromechanical valves, namely servo-valves, pulverulent material discharge control pump valves; apparatus, valves and flow regulator valves, namely dust discharge control valves being parts of dust discharge machines, pulverulent material discharge control valves being parts of dust discharge machines; air and dust suction machines for industrial purposes, namely dust separators-- dust collectors for industrial purposes in the iron and steel and non-ferrous industries, namely hydraulic dust discharge machines; machine parts namely dust condensers for industrial purposes in the iron and steel and non-ferrous industries; machine parts namely dust condensers; control mechanisms for opening and closing of valves, namely hydraulic valve actuators; pneumatic and hydraulic valve actuators for machines; enclosed pneumatic and hydraulic drives for industrial machinery; dust removal machines for metallurgical plants and blast furnaces, namely vacuum shredders for clearing debris; apparatus, valves and dust unloading valves for metallurgical plants and blast furnaces, namely servo-valves, pulverulent material discharge control valves; apparatus, valves and electromechanical valves, namely servo-valves, discharge control valves for pulverulent materials, for pneumatic conveying of pulverulent materials; hydraulic and pneumatic devices for opening or closing valves and electromechanical valves, namely servo-valves and pulverulent material discharge control valves, and hydraulic and pneumatic valve actuators; hydraulic and pneumatic devices for opening or closing clack valves, namely hydraulic and pneumatic valve actuators; apparatus, valves and valves for the compression, suction and transport of gas and pulverulent materials, namely air and powder suction and transport machines in the nature of venturi ejector and venturi ejector for the suction and the transport of pulverulent materials; dust separators; ejectors, namely venturi ejectors for pulverulent materials suction; compressed air pumps; steelworking machine parts, namely joints for valves and electromechanical valves

Scientific and technological research and design services in the fields of iron and steel and non-ferrous metallurgy; industrial analysis and research services in the field of iron and steel and non-ferrous metallurgy; architectural consultation; preparation of construction plans; technical project studies, namely, technical advice about steel; surveying; engineering services; mechanical research; technical research services in the field of iron and steel and non-ferrous metallurgy; scientific, technical and mechanical research on flow control for liquid, solids or gases and metallurgy