37 Overhaul services, namely, drying and cleaning of particulate and moisture contaminants in machinery and consultations relating thereto, replacement of damaged machine parts, filter cartridges, and dirt separators, and cleaning of machinery in the energy industry; Repair services and maintenance of machines and auxiliary apparatus in the energy industry, in particular capacitors for turbines, pumps, filtration units, oil filters, and heat exchangers; Comprehensive oil change in machines and apparatus in the energy industry, metallurgy and mining industry; Cleaning and flushing, in particular hydrodynamic cleaning and flushing, of oil installations of machines apparatus for the energy industry, chemical industry, metallurgy and mining industry; Cleaning, degreasing, dedusting, maintenance and anticorrosion treatment of industrial apparatus and production hall platforms for the energy industry, chemical industry, metallurgy and mining industry; Cleaning of hazardous waste being spilled petrochemical fluids, including oils and lubricants, from solid surfaces