6
Common metals and their alloys, in particular aluminium; metal building materials; non-electric cables and wires of common metal; ironmongery, smalls items of metal hardware; pipes and metal tubing; goods of common metal not included in other classes, in particular rotors; rotors of metal for turbines; drainage valves
7
Machines in general and machine tools, in particular installations used in casting metals, machines for the continuous casting of metals; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); turbines; gas turbines; steam turbines; hydroelectric turbines; rotors not for land vehicles; high-pressure cylinders of metal; high-pressure containers; machine valves, high-pressure precision valves of metal; generators; vanes, wind energy vanes
9
Scientific, measuring, checking (supervision) apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling of electricity; valves, electric regulating valves, electronic valves, control, command and regulating apparatus for valves and parts of valves, electric valve actuators
11
Apparatus for lighting, heating, steam generating, cooking, drying, ventilating; gas combustion chambers
12
Vehicles; apparatus for locomotion by land, turbines for land vehicles
37
Construction of special installations and machines for the construction of quality boiler works/structures and high-tech parts, repair, assembly and installation
40
Treatment of materials
42
Scientific and technological services and research and design relating thereto; industrial analysis and research services; study, design and research in the field of metals and the processing thereof