B.W.S.T. s.c. Olejniczak Sebastian Szlaski Artur

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

43.21.Z - Electrical installation

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

43.99.Z - Other specialised construction activities not elsewhere classified

46.74.Z - Wholesale of hardware and plumbing and heating equipment and supplies

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Other technical testing and analysis