Weldtech Krzysztof Trzewiczek

25.53.Z - Mechanical processing of metal parts

33.19.Z - Repair and maintenance of other equipment and installations

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

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

43.35.Z - Performing other finishing construction works

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

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

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

81.22.B - Other cleaning of buildings and industrial premises, not elsewhere classified