37 Installation, Assembly, Maintenance, fix, in relation to the following goods: Equipment, Products, Investment, for use in the field of energy production, Power transmission, power distribution, Electrical engineering, Electronics, Information technology, Machinery construction; cable laying; Construction and maintenance of pipelines; Installation, maintenance and repair of energy converters and power plants, Installation, maintenance and repair of wave energy converters and wave energy power plants; Installation, construction, maintenance, repair and servicing of installations and apparatus for power and energy generation; Installation, maintenance and repair of solar energy installations for power generation; Underwater construction; Pipeline construction and maintenance