Piotr Korzeń ZEK

25.62.Z - Mechanical working of metal elements

25.11.Z - Manufacture of metal structures and parts of structures

25.12.Z - Manufacture of metal elements of building woodwork

25.21.Z - Manufacture of central heating radiators and boilers

25.29.Z - Manufacture of other tanks, reservoirs and containers of metal

25.91.Z - Manufacture of metal containers

25.92.Z - Manufacture of metal packaging

25.93.Z - Manufacture of wire products,chains and springs

25.94.Z - Manufacture of fasteners and screws

25.99.Z - Manufacture of other fabricated metal products not elsewhere classified

33.11.Z - Repair and maintenance of fabricated metal products

33.12.Z - Repair and maintenance of machinery

33.13.Z - Repair and maintenance of electronic and optical equipment

33.14.Z - Repair and maintenance of electrical equipment

33.15.Z - Repair and maintenance of ships and boats

33.16.Z - Repair and maintenance of aircraft and spacecraft

33.17.Z - Repair and maintenance of other transport equipment

33.19.Z - Repair and maintenance of other equipment

33.20.Z - Installation of industrial machinery and equipment and outfit

43.22.Z - Plumbing, heat and air-conditioning installation

43.99.Z - Other specialised construction activities not elsewhere classified