Pretoria
Past exhibitions "Petrolium, Gas, Chemistry" in Pretoria (South Africa)
| Date | Title, short description | |
|---|---|---|
|
13.11 17.11.2006 |
Geology and Raw Material Resources of Russia - 2006 Exhibition-Presentation |
| Date | Title, short description | |
|---|---|---|
|
13.11 17.11.2006 |
Geology and Raw Material Resources of Russia - 2006 Exhibition-Presentation |