Waldemar Piotrowski

42.21.Z - Works related to the construction of transmission pipelines and distribution networks

16.23.Z - Production of other carpentry and joinery products for construction

25.61.Z - Production of cutlery and knives

25.62.Z - Production of locks and hinges

33.11.Z - Repair and maintenance of metal products

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

43.12.Z - Site preparation for construction

43.24.Z - Installation of other building systems

43.32.Z - Installation of building carpentry

43.34.Z - Painting and glazing

43.35.Z - Performing other finishing construction works

43.41.Z - Performing roof structures and coverings

43.42.Z - Performing other specialized construction works related to the construction of buildings

43.91.Z - Masonry works

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