 |
| |||
| crown sheave; derrick pulley; head wheel | |||
| |||
| crown sheaves | |||
| ролик кронблока: 6 do fraz, 4 tematyki |
| Olej i gaz | 1 |
| Ropa / ropa naftowa | 2 |
| Technologia ropy i gazu | 2 |
| Wiercenie | 1 |
|
| |||
| crown sheave; derrick pulley; head wheel | |||
| |||
| crown sheaves | |||
| ролик кронблока: 6 do fraz, 4 tematyki |
| Olej i gaz | 1 |
| Ropa / ropa naftowa | 2 |
| Technologia ropy i gazu | 2 |
| Wiercenie | 1 |