7
Ice surface treatment machines; Energy apparatus, namely: Generators; Liquid processing machines; hydrogen generation equipment; Hydrogen processing machines; Limescale collectors for mechanical boilers; Drainage machines; De-aerators for feedwater; Water heaters as parts of machines; Water separator; Separators; Heat exchangers (parts of machines); Aerators; Oil refining machines
9
Energy-saving machines for heating or cooling liquids
11
Liquid activation equipment (changing the structure of liquids); Apparatus for changing the parameters of liquids; Fuel economisers; Freezers; Ice makers; Cooling installations for liquids; Water purification installations; Water filtering installations; Cooling installations for water; Water sterilizers; Filters for drinking water; Ionization apparatus for the treatment of air or water; Water purifying apparatus and machines; Regulating and safety accessories for water apparatus; Water softening units; Apparatus for descaling water; Air purgers for use with water supply installations; Air purgers for use with water distribution installations; Water treatment filters; Water heaters; Heating apparatus; Heating apparatus; Heating elements; Desalination plants; Refrigerating chambers; Nuclear reactors; Oil-scrubbing apparatus; Lighting installations; Lamp reflectors; ventilation devices; Space heating apparatus and installations; Refrigerating machines; Installations for refrigerating; Steam generating installations; Steam generating apparatus; Drying apparatus and installations; apparatus and appliances for ventilating; Water distribution apparatus; apparatus for the distribution of water; Sanitary facilities; Air-conditioning apparatus; Air-conditioning apparatus; Hydrogen purifying and separating machines; Descaling apparatus
40
Fluid treatment; Custom assembling of materials for others; Customised production of energy-related goods for others; Production of custom energy-saving goods for others; Magnetization; Galvanization; Dyeing services; Metal treating; Gold plating; Recycling of waste; Waste treatment [transformation]; Incineration of waste and trash; Upcycling [waste recycling]; Air deodorizing; Processing of oil; Beer brewing for others; Water treating; Treatment of gas