Replaceable drainage pipe and karst tunnel

The utility model discloses a replaceable drain pipe and karst tunnel, replaceable drain pipe includes inner pipe, outer pipe, ball seat, ball and flange, the ball seat is provided in the inner wall of outer pipe, the ball is rotatablely provided on the ball seat, the inner pipe is slideably provide...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG YI, ZHONG ZULIANG, ZHAN SHUGAO, CHEN YUBO, LI JIAWEN, LI YAPENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!