37 Installation, assembly, repair, servicing, maintenance, and renovation of machines, namely, pumps for machines, pumps as parts of machines, pumps, namely, water supply pumps, waste water disposal pumps, pressure boosting pumps, drainage pumps, sewage pumps, sewage lifting pumps, slurry pumps, cooling or heat transfer fluid circulating pumps, submersible barehole pumps, multi-stage water pumps, well pumps, corrosion-resistant pumps, hermetically-sealed pumps, desalination plant pumps, irrigation pumps, magnetic drive pumps, electric oil and chemical pumps for handling aggressive, toxic, explosive, valuable, inflammable, malodorous, and harmful liquid, electric pumps for crude oil transport and petrochemical applications, fittings, namely, valves, motors and engines other than for land vehicles, and electric and electronic apparatus, namely, operation sensors and monitors for sensing and monitoring position, temperature, pressure, leakage, speed, vibrations, flow rate, and liquid level, and units and installations comprising the aforesaid goods for use in the pump industry, engineering industry and construction industry; construction of industrial installations, machine installations, installations for the transportation and treatment of liquid, gaseous or solid media; operation of plants, namely, technical supervision and inspection of the installations with the machines, pumps, fittings, motors and engines, and electric and electronic apparatus for use in the pump industry, engineering industry and construction industry; project monitoring and coordination in respect of the installation, assembly, repair, servicing and maintenance of the machines, pumps, fittings, motors and engines, and electric and electronic apparatus for use in the pump industry, engineering industry and construction industry