PK-TECH PIOTR KRZYKAWSKI

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

43.12.Z - Site preparation for construction

43.21.Z - Installation of electrical systems

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

43.35.Z - Performing other finishing construction works

43.91.Z - Masonry works

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

47.52.Z - Retail sale of small metal products, building materials, paints, and glass

49.42.Z - Moving services

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