4
Gas; gas mixtures (fuel)
7
Fuel pumps
11
Gas operated apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; Installations for cleaning, filtering, separation, incineration and liquefaction of gases
35
Retail of gas; business administration service connected with gas production and distribution; sale promotion activities related to gas production and distribution
37
Installation, maintenance and repair services of gas operated apparatus and gas supply systems
39
Transmission, distribution, supply, transportation and storage of gas; consultancy relating to the distribution and supply of energy for energy supply network operators
40
Gas production; procession of gas; Processing of gases; Purification of gases; Filtration of gases; Incineration of gases; liquefaction of gas
42
Scientific and technological services and research and design relating thereto in relation to the energy sector; industrial analysis and research services in relation to the energy sector; software design and development for use in the energy sector; consultancy in the field of energy-saving; Advisory services relating to the use of energy; Consultancy in the field of energy efficiency; technical advisory services relating to the use of gas; design of engineering works relating to gas pipelines and heating solutions; technical planning of infrastructural facilities for gas transport purposes; engineering services; remote diagnosis services for monitoring the condition and function of gas operated apparatus and gas supply systems; remote diagnosis services for ascertaining the cause of malfunctions in gas operated apparatus and gas supply systems; Design and development of energy distribution networks; Engineering services relating to energy supply systems