Water stop device for preventing water leakage of through hole and processing method thereof

The invention discloses a water stopping device for preventing water leakage of a through hole and a machining method of the water stopping device. The device comprises a water leakage stopping body and a water sealing rubber ring. The water leakage and stop body is a seamless steel tube with a thic...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG HONGBO, DING SHAOLING, GAO WEI, HAN YUFU, WANG KANG, NING FANGBO, FU CAI, LI NING, YANG ZHIGANG, XU SHURONG, LIU MINGLIANG, ZHANG FUJIAN, CHEN HONGLEI, YANG YANG, YE YUXI, KONG LINGHUI, PENG FEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	COMBINED OPERATIONS EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR MINING OTHER WORKING OF METAL PERFORMING OPERATIONS SHAFTS TRANSPORTING TUNNELS UNIVERSAL MACHINE TOOLS
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