Easily pull out type stock

The utility model discloses an easily pull out type stock, including the body of rod and setting up the direction pointed cone at first body of rod tip, the afterbody of the body is provided with the first shifting block of drawing, and the first shifting block's of drawing diameter will be gre...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ZHAO ZHICHUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!