6
Crane tracks, supporting arm columns, electrode supporting arms, electrode mounts, spacer blocks, supports, suspension apparatus and wall ducts for conductor rails, high voltage lines, high voltage cables and water pipes of metal, vibration dampers for high voltage lines and high voltage cables, vibration dampers for water pipes
7
adjusting cylinders
9
Installations for electrometallurgy, namely light arc-, reduction-, pan-, vacuum-, induction-, resistance-, plasma- and direct current furnaces, graphitising installations, parts for the aforesaid installations, namely melting vessels, graphite and copper electrodes, contact clamps, high voltage lines, high voltage cables, conductor rails, chokes, induction loops, cable heads and couplings for connection of high voltage lines and high voltage cables, expansion joints, vibration dampers for conductor rails, high voltage power supply installations, switching installations, transformers, electrical equipment for band galvanising installations, galvanising installations, resistance welding machines and welding robots, namely connector pipes and connector cables, electrical equipment for nuclear fusion installations, namely connector pipes and connector cables, welding tongs, tensile strength meters
17
Heat-resistant and high tensile strength, including reinforced, protective tubes for high voltage lines and high voltage cables of rubber or plastic for insulating and protecting the aforesaid lines and cables, the aforesaid tubes also for conveying refrigerants, spacer blocks, supports, suspension apparatus and wall ducts for conductor rails and electricity conduits, high voltage cables and water pipes of ceramic
37
Building construction, namely constructing light arc, reduction, pan, vacuum, induction, resistance, plasma and direct current furnaces, graphitisation and band galvanisation installations; repair and maintenance of light arc, reduction, pan, vacuum, induction, resistance, plasma and direct current furnaces, graphitisation and band galvanisation installations
42
design of light arc, reduction, pan, vacuum, induction, resistance, plasma and direct current furnaces, graphitisation and band galvanisation installations