 |
| |||
| block mining; block system; square-set stoping | |||
| frame; framework; cribwork; cradling | |||
|
Blockbau : 9 do fraz, 3 tematyki |
| Budownictwo | 3 |
| Górnictwo | 5 |
| Rolnictwo | 1 |
|
| |||
| block mining; block system; square-set stoping | |||
| frame; framework; cribwork; cradling | |||
|
Blockbau : 9 do fraz, 3 tematyki |
| Budownictwo | 3 |
| Górnictwo | 5 |
| Rolnictwo | 1 |