HRE9 Piotr Tadeusz Borek

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

33.14.Z - Repair and maintenance of electrical equipment

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

35.11.Z - Production of electricity

35.30.Z - Steam, hot water and air conditioning manufacturing and supply

36.00.Z - Water collection, treatment and supply

37.00.Z - Sewage disposal and treatment

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

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

42.91.Z - Works related to construction of water projects

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

43.29.Z - Other construction installation

43.39.Z - Other building completion and finishing

43.99.Z - Other specialised construction activities not elsewhere classified

46.69.Z - Wholesale of other machinery and equipment

47.91.Z - Retail sale via mail order houses or via Internet

72.19.Z - Other research and experimental development on natural sciences and engineering

85.59.B - Other out-of-school forms of education, not elsewhere classified

85.60.Z - Educational support activities