"MARKAM TECHNOLOGY" MARCIN MASZCZYŃSKI

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

33.14.Z - Repair and maintenance of electrical devices

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

43.11.Z - Demolition and destruction of buildings

43.21.Z - Installation of electrical systems

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

43.23.Z - Installation of insulation

43.24.Z - Installation of other building systems

43.32.Z - Installation of building carpentry

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

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

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

71.20.C - Other technical testing and analysis

81.10.Z - Auxiliary activities related to maintaining buildings

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