6
Common metals, unwrought or semi-wrought; alloys of common metal; building materials of metal; goods made of metal, namely, foundry molds of metal; cast iron, unwrought or semi-wrought; cast steel; cast stainless steel; spheroidal cast iron; chilled cast iron; support pipes for machines, consisting of cast metal; railway points; water-pipe valves of metal
7
Machine parts, namely, parts for wind turbines and plants consisting thereof; parts of nacelles of wind turbines; machine tools and parts thereof; molds; pumps and parts thereof; housings [parts of machines]; axles for machines; transmission shafts, other than for land vehicles; machine-operated tools, namely, tools for machine tools; foundry machines; armatures (parts of machines) cast in one piece, for different industry sectors, in particular for the chemical industry; machine components, namely, frames, covers, housings, machine tool holders; clutch pistons for machines; compressors; pistons [parts of machines or engines]; printing cylinders; extender wheels; crankcases for pumps as far as included in this class; pumps [machines], the aforesaid goods as adjusted machine parts; colander frames [machine parts]; crankcases for machines, motors and engines; bearings [parts of machines]; ball-bearings; ball-bearing rings; roller bearings; couplings, other than for land vehicles; parts and accessories for wind mills, wind power plants, wind turbines and other wind-operated machines; mill towers and masts; blade hubs; mill housings; machine beds; rotation devices; yaw rings and gears; devices for setting the pitch of the wings; brakes and brake devices; main shafts; universal joints; gear boxes, other than for land vehicles; power transmission couplings, other than for land vehicles; parts and fittings for all the aforesaid goods
37
Installation of wind power systems; maintenance and repair of wind power plants; the pre-assembly of modules for the manufacturing of wind power turbines; installation, maintenance and repair of wind mills, wind power plants, wind turbines and other wind-operated machines; advisory, consultancy and information services relating to all the aforesaid services
40
Heat treatment and coating of steel; surface polishing; treatment of materials using chemicals; treatment of materials by laser beam; metallurgical processing; vulcanization [material treatment]; processing of steel; heat treating of steel; cutting of steel; processing of light metals; metal plating and laminating; heat treating of metals and alloys; processing of metals; hardening of metals; machining of metals; metal plating; processing of metal parts; heat treating of metals; metal treating; plating; applying finish to stainless steel sheets and coils; processing of metal surfaces by abrasive polishing; processing of metal surfaces using precision grinding techniques; custom steel rolling and fabrication to the order and specification of others; alloy plating
42
Technical assistance concerning wind mill and wind power projects; development of components for wind mills, wind power plants, wind turbines and wind-operated machines; advisory, consultancy and information services relating to all the aforesaid services; product development; technical consultancy relating to product development; product research and development services; development, analysis and consultancy services in the field of engineering