JACEK KRAWCZYŃSKI "INVENT" Pracownia Projektowo-Wykonawcza mgr inż. Jacek Krawczyński

71.12.Z - Engineering activities and related technical consultancy

25.30.Z - Manufacture of steam generators, except central heating hot water boilers

41.20.Z - Building works related to erection of residential and non-residential buildings

42.21.Z - Works related to construction oftransmission pipelines and distribution networks

42.22.Z - Works related to construction of telecommunications and electricity lines

42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified

43.11.Z - Demolition

43.12.Z - Site preparation

43.13.Z - Test drilling and boring

43.21.Z - Electrical installation

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

43.29.Z - Other construction installation

43.31.Z - Plastering

43.34.Z - Painting and glazing

43.91.Z - Roofing activities

43.99.Z - Other specialised construction activities not elsewhere classified

47.99.Z - Other retail sale not in stores, stalls or markets

68.10.Z - Buying and selling of own real estate

69.20.Z - Accounting, bookkeeping and auditing activities; tax consultancy

71.20.B - Other technical testing and analysis