Main pipelines

Construction and major overhaul of main gas pipelines and water pipelines;
Construction and reconstruction of gas-distribution and pump stations;
Protection of underground communications against ground corrosion and corrosion caused by stray currents;
Mounting of drainage-protection installations;
Modernization of the equipment of main oil and gas pipelines;
Conduct of insulation of both internal and external pipelines;
Branch cutting-in and repair of valves without interruption of gas and oil transportation;
Construction on any types of soil, the laying of pipelines under highways and other obstacles.