Zakład Ogólnobudowlany Knast-Bud Szymon Knast

43.35.Z - Performing other finishing construction works

05.10.Z - Hard coal mining

08.11.Z - Extraction of ornamental stones, limestone, gypsum, shale, and other stones and rocks

41.00.A - Construction work related to the construction of residential buildings

41.00.B - Construction work related to the construction of non-residential buildings

42.11.Z - Works related to the construction of roads and highways

43.21.Z - Installation of electrical systems

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

43.31.Z - Plastering

43.34.Z - Painting and glazing

43.41.Z - Performing roof structures and coverings

43.91.Z - Masonry works

46.13.Z - Activity of agents involved in wholesale trade of wood and building materials