HOSE FILLABLE BY CONCRETE AND METHOD USED BY SAME FOR EXTENDING TO ROCK SURFACE SHAPES SUPPORTING STRUCTURES SERVING FOR SUPPORTING UNDERGROUND SPACES

Bibliographische Detailangaben

Hauptverfasser:	KEREKES,JENOE,HU, BAJKAY,ARPAD,HU, KOZAK,ISTVAN,HU
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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