Chinese Petroleum Society:
| , | ||
|---|---|---|
|
17.07 20.07.2019 |
MetalForm China - 2019 (. ) | |
|
08.06 10.06.2010 |
International Oil & Gas Conference and Exhibition in China (IOGCEC) - 2010 (. ) | |
|
05.12 07.12.2006 |
IOGCEC - 2006 (. ) 8- |
| , | ||
|---|---|---|
|
17.07 20.07.2019 |
MetalForm China - 2019 (. ) | |
|
08.06 10.06.2010 |
International Oil & Gas Conference and Exhibition in China (IOGCEC) - 2010 (. ) | |
|
05.12 07.12.2006 |
IOGCEC - 2006 (. ) 8- |