OT Craft Oskar Trzcinka

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

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

31.00.Z - Manufacture of furniture

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

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

43.12.Z - Site preparation for construction

43.23.Z - Installation of insulation

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

43.50.Z - Specialized construction works in the field of civil and water engineering