4
Industrial oils and greases, lubricants
7
Pumps, compressors and fans; Current generators; Motors, other than for land vehicles; Gas engines; Diesel engines not for land vehicles; Machine coupling and transmission components (except for land vehicles); Crank shafts; Cam shafts; Connecting rods for machines, motors and engines; Control mechanisms for machines, for engines and motors; Current generators; Emergency power generators; Combustion engines with coupled heat exchangers for electricity and heat generation, being complete units (combined heat and power plants); Power and heat cogeneration apparatus and internal combustion engines coupled with current generators and/or heat exchangers for generating electrical and/or heat energy
9
Measuring, detecting and monitoring instruments, indicators and controllers; Electric control devices for energy management; Warning apparatus [other than for vehicles]; Remote monitoring apparatus; Control stations (Remote, electric or electronic -)
11
Regulating and safety accessories for water and gas installations; Heat exchangers, other than parts of machines
37
Building construction; Construction of power plants; Building construction and repair; Installation of power generating apparatus; Machinery installation, maintenance and repair; Maintenance and repair of energy generating installations; Repair of energy production plants and machines; Repair of biogas plants and machines; Repair services relating to engines; Repair of heat recovery apparatus; Maintenance, servicing and repair of power generating apparatus and installations; Repair or maintenance of power generators; Maintenance and repair of electricity generators; Repair or maintenance of power distribution or control machines and apparatus; Maintenance and repair of gas and electricity installations; Repair of gas supply systems; Emergency servicing of gas supply apparatus; Pump repair or maintenance; Advisory services relating to the installation of power plants; Building, installation, maintenance and repair of installations for obtaining energy from electrical energy and/or thermal energy, in particular combined heat and power stations, power-heat cogeneration apparatus and internal combustion engines coupled with electricity generators and/or heat exchangers for generating electrical and/or thermal energy; General overhaul of diesel and gas engines
40
Production of energy by power plants