Unit support with top beam anti-falling device

The unit support with the top beam anti-falling device comprises a base, a stand column is arranged on the base, a top beam is arranged on the top of the stand column, and the top beam anti-falling device is connected between the top beam and the upper portion of the stand column. The top beam anti-...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG XINGLONG, LIU PEIKANG, WANG GANG, YANG LIGUANG, NIU YAJIE, LI HAO, LYU QIDI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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