Oleksandr Mandryk

43.21.Z - Installation of electrical systems

33.14.Z - Repair and maintenance of electrical devices

42.12.Z - Works related to the construction of railways and underground railways

42.22.Z - Works related to the construction of telecommunications and electrical lines

42.99.Z - Works related to the construction of other civil engineering and water engineering objects, not classified elsewhere

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

43.31.Z - Plastering

43.32.Z - Installation of building carpentry

43.33.Z - Flooring, wallpapering, and cladding of walls

43.34.Z - Painting and glazing

43.35.Z - Performing other finishing construction works

46.50.Z - Wholesale trade of information and communication technology devices

47.12.Z - Other non-specialized retail trade

47.40.Z - Retail sale of information and communication technology equipment

71.11.Z - Architectural activities

71.12.B - Engineering activities and related technical consultancy

85.59.D - Other non-school forms of education, not classified elsewhere

85.69.Z - Educational support activities, not classified elsewhere