Usługi telekomunikacyjne "TELF" Jarosław Michalski

95.12.Z - Repair and maintenance of computers, personal and household goods, and motor vehicles, including motorcycles

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

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

43.39.Z - Specialized construction works

61.10.Z - Activities in the field of wired, wireless, and satellite telecommunications

61.20.Z - Activities related to the resale of telecommunications services and telecommunications mediation

80.20.Z - Detective and security activities