Tear sword

The utility model discloses a tear sword, this tear sword include tool bit and knife rest, the top of tool bit is provided with cemented carbide cutter, be provided with the piece of pegging graft onthe lower terminal surface of tool bit, just the grafting piece pass the diaphragm of knife rest exte...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHAO WANXIN, HUANG WENGUO, WEI ZHENWU, SHAO HELEI, KONG RUIPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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