Janusz Szynwelski

43.21.Z - Electrical installation

27.90.Z - Manufacture of other electrical equipment

33.12.Z - Repair and maintenance of machinery

33.13.Z - Repair and maintenance of electronic and optical equipment

33.14.Z - Repair and maintenance of electrical equipment

33.19.Z - Repair and maintenance of other equipment

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

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

43.29.Z - Other construction installation

43.32.Z - Joinery installation

43.34.Z - Painting and glazing

43.39.Z - Other building completion and finishing

43.99.Z - Other specialised construction activities not elsewhere classified

46.73.Z - Wholesale of wood, construction materials and sanitary equipment

95.22.Z - Repair and maintenance of household appliances and home and garden equipment