KiDT Grzegorz Bartczak

71.12.Z - Engineering activities and related technical consultancy

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

42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified

43.21.Z - Electrical installation

43.22.Z - Plumbing, heat and air-conditioning installation

46.69.Z - Wholesale of other machinery and equipment

46.90.Z - Non-specialised wholesale trade

70.22.Z - Business and other management consultancy activities

74.10.Z - Specialised design activities

74.90.Z - Other professional, scientific and technical activities not elsewhere classified