6
Steel pipes; cast iron pipes; metal pipes and fittings thereof; poles of metal; steel buildings; transportable metal constructions; metal materials for building and construction; frames of metal for building; framework of metal for building; pillars of metal for building; metal foundation pile for civil engineering; palings of metal; metal flanges
7
Wind-powered installations for generating electricity; generators; wind-powered electricity generators; offshore wind-powered electricity generators
37
Repair and maintenance of wind power plants; construction of renewable energy factory including solar energy and wind power; installation of wind power plants facilities; construction, erection, installation, repair, renovation, servicing, maintenance and dismantling of wind farms
42
Research and development in the field of wind power generation; technical consultancy in the field of wind power generation
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