 |
| |||
| advance timbering; cantilever timbering; console support; console timbering; fore support; forepoling; overhanging beam; telescoping support | |||
|
передовая крепь : 13 do fraz, 3 tematyki |
| Geologia | 1 |
| Górnictwo | 11 |
| Wojskowość | 1 |
|
| |||
| advance timbering; cantilever timbering; console support; console timbering; fore support; forepoling; overhanging beam; telescoping support | |||
|
передовая крепь : 13 do fraz, 3 tematyki |
| Geologia | 1 |
| Górnictwo | 11 |
| Wojskowość | 1 |