Jan Koszałka Usługi Ogólnobudowlane

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

43.11.Z - Demolition

43.12.Z - Site preparation

43.31.Z - Plastering

43.32.Z - Joinery installation

43.33.Z - Floor and wall covering

43.34.Z - Painting and glazing

43.39.Z - Other building completion and finishing

43.91.Z - Roofing activities

77.32.Z - Rental and leasing of construction machinery and equipment