Date | Title, short description | |
---|---|---|
28.04 29.04.2010 |
Building of the North. Energy Complex. Eco-AQUA - 2010 Interregional Specialized Exhibition |
|
28.04 29.04.2010 |
Subsurface Resources of the North. Oil Production. Gasification. Ecology - 2010 4th International Specialized Exhibition-Fair |