WELDER KRZYSZTOF JEZIOROWSKI

33.11.Z - Repair and maintenance of fabricated metal products

25.11.Z - Manufacture of metal structures and parts of structures

41.20.Z - Building works related to erection of residential and non-residential buildings

43.11.Z - Demolition

43.21.Z - Electrical installation

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

43.31.Z - Plastering

43.91.Z - Roofing activities

45.20.Z - Maintenance and repair of motor vehicles, excluding motorcycles