 |
| |||
| back coming; mining retreating; retreating system; working home; working-out-bye | |||
| retreating working | |||
|
exploitation en rabattant : 2 do fraz, 1 tematyki |
| Hutnictwo | 2 |
|
| |||
| back coming; mining retreating; retreating system; working home; working-out-bye | |||
| retreating working | |||
|
exploitation en rabattant : 2 do fraz, 1 tematyki |
| Hutnictwo | 2 |