F.U.H Piotr Gulczyński

43.39.Z - Specialized construction works

01.61.Z - Service activities supporting crop production

01.62.Z - Service activities supporting animal husbandry

01.63.Z - Post-harvest services and seed processing for plant propagation

25.61.Z - Production of cutlery and knives

25.62.Z - Production of locks and hinges

33.12.Z - Repair and maintenance of machinery

33.20.Z - Installation of industrial machinery, equipment, and devices

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

43.11.Z - Demolition and destruction of buildings

43.12.Z - Site preparation for construction

43.13.Z - Performing excavations and geological-engineering drilling

43.21.Z - Installation of electrical systems

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

43.29.Z - Specialized construction works

43.31.Z - Plastering

43.32.Z - Installation of building carpentry

43.33.Z - Flooring, wallpapering, and cladding of walls

43.91.Z - Masonry works

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

81.21.Z - General cleaning of buildings

81.30.Z - Landscaping services

82.11.Z - Office administrative support activities and other business support services

82.19.Z - Office administrative support activities and other business support services

82.99.Z - Other business support activities, not elsewhere classified

96.09.Z - Individual service activities