Reduce device that shield constructs machine knife dish and wearing and tearing of native storehouse inner wall

The utility model discloses a reduce device that shield constructs machine knife dish and wearing and tearing of native storehouse inner wall, including wear -resisting steel sheet, wear -resisting steel sheet is fixed around the blade disc, around the incision intra -annular side and on the pressur...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Zhang Jinlai, Zheng Tong, Yang Bin, Huang Hailong, Zhao Yalan, Ren Xufeng, Kou Mingying
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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