PROINSTAL Grażyna Krzywdzińska

43.21.Z - Installation of electrical systems

41.10.Z - Construction work related to the construction of residential and non-residential buildings

41.20.Z - Construction work related to the construction of residential and non-residential buildings

42.99.Z - Works related to the construction of other civil engineering and water engineering objects, not classified elsewhere

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

43.29.Z - Specialized construction works

43.39.Z - Specialized construction works

43.99.Z - Other specialized construction works, not classified elsewhere

46.63.Z - Wholesale trade of machines used in mining, construction, and civil and water engineering

46.69.Z - Wholesale trade

46.74.Z - Wholesale trade

47.99.Z - Retail trade

49.41.Z - Road freight transport

77.12.Z - Rental and leasing of trucks

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