7
Feeding apparatus for engine boilers; Scale collectors for machine boilers; Steam condensers [parts of machines]; Steam/oil separators; Heat exchangers [parts of machines]; Filters being parts of machines or engines; Electricity generators; Condensing installations; Dust exhausting installations for cleaning purposes; Suction machines for industrial purposes; Pressure regulators [parts of machines]; Separating machines; Blowing machines for the compression, exhaustion and transport of gases; Superchargers; Turbines for power generation; Hydrogen dispensing pumps for service stations; Industrial hydrogen production machines; Hydrogen generator stations
11
Regulating and safety accessories for water and gas installations; Heat accumulators; Steam accumulators; Heating apparatus for solid, liquid or gaseous fuels; Burners, boilers and heaters; Heating apparatus; Heat exchangers, other than parts of machines; Chemical processing equipment; Equipment for heating; Evaporators; Furnaces, other than for laboratory use; Hearths; Incinerators; Ash conveyor installations, automatic; Heating installations [water]; Steam generating installations; Industrial treatment installations; Gas cleaners and purifiers; Distillation columns; Gas scrubbers [parts of gas installations]; Refining towers for distillation; Steam boilers (other than parts of machines); Superheaters
40
Rental of boilers; Destruction of waste and trash; Energy production; Rental of generators; Refining services; Recycling of waste and trash; Waste treatment [transformation]; Sorting of waste and recyclable material [transformation]; Upcycling [waste recycling]; Production of gas; Rental of renewable gas generating installations