7
Electricity generators; pumps; parts and fittings for all of the aforementioned goods
9
Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; batteries; chargers; scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; parts and fittings for all of the aforementioned goods
11
Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes; parts and fittings for all of the aforementioned goods
37
Installation, repair and maintenance of apparatus and instruments for generating or conserving energy, power, electricity and light; advisory, consultancy and information services relating to all the aforesaid
40
Generation of energy; energy and power production services; recycling services; production of electricity; production of electrical power from renewable sources; advisory, consultancy and information services relating to all the aforesaid
42
Scientific, technological services and research and design relating thereto; industrial analysis; research and design services; quality control services; engineering consultancy; design consultancy; advisory, consultancy and information services; all of aforementioned relating to power generation, electricity, energy, and renewable energy