4
Combustible products and Biofuel products; Gas for lighting, Oils and Fuel gas, Gaseous fuels, including liquefied or dissolved fuels, in particular Fuel gas for example Hydrogen
7
Equipment and apparatus for energy production, specifically, gas and steam turbine power plants; Wind and hydroelectric power plants; Solar power plants; Components (structural parts) for the aforesaid installations; Centrifugal machines; Electric power supplies [generators]; Electricity generators; Electric motors, and their parts, not for land vehicles; Electric propulsion mechanisms for water vehicles; Electric azimuth thruster engines for ships; Generators of electricity and power for ships fitted with electric azimuth thruster engines; Diesel engines for ships fitted with electric azimuth thruster engines; Pumps, compressors and blowers; Machine tools for power production and distribution; Internal combustion motors [other than for land vehicles]; Turbines for power generation; Compressors; Equipment and machines for the automated handling of tools and workpieces; Steam engine boilers; Liquid dispensing machines; Tanks and reservoirs, not of metal, for producing, liquefying, separating, purifying, collecting and distributing chemicals, gases and gas mixtures, in liquid or gaseous form
11
Tanks and reservoirs, not of metal, for drying chemicals, gases and gas mixtures, in liquid or gaseous form; Air separators; Flues and installations for conveying compressed or liquefied gases; Tank control valves; Gas regulators; Air control dampers; Safety apparatus for water and gas pipes, namely Pressure-monitoring equipment; Cryogenic apparatus; Apparatus for refrigerating purposes using gases or gaseous mixtures as a source of cold; Air humidifying, treatment, sterilisation and recycling apparatus; Air filters