43.39.Z - Specialized construction works
16.23.Z - Production of other carpentry and joinery products for construction
43.12.Z - Site preparation for construction
43.13.Z - Performing excavations and geological-engineering drilling
43.21.Z - Installation of electrical 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
82.30.Z - Activities related to organizing fairs, exhibitions, and congresses