KOREA NATIONAL RAILWAY PRZEDSIĘBIORSTWO PAŃSTWOWE ODDZIAŁ W POLSCE

74.10.Z - Specialized design activities

37.00.Z - Sewerage and waste water treatment

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

42.91.Z - Works related to the construction of water engineering objects

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

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

71.11.Z - Architectural activities

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Inspection and issuing opinions on the technical condition of chimneys and ventilation ducts