OLSZEWSKI SŁAWOMIR Went - System

33.14.Z - Repair and maintenance of electrical equipment

27.12.Z - Manufacture of electricity distribution and control apparatus

33.20.Z - Installation of industrial machinery and equipment and outfit

43.21.Z - Electrical installation

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

43.39.Z - Other building completion and finishing

43.99.Z - Other specialised construction activities not elsewhere classified

47.91.Z - Retail sale via mail order houses or via Internet

68.20.Z - Rental and operating of own or leased real estate

71.20.B - Other technical testing and analysis

81.21.Z - General cleaning of buildings

81.22.Z - Specialised building and industrial cleaning activities

81.29.Z - Other cleaning activities