Ball-off type pressure tapping detonating device

The utility model discloses a ball-off type pressure tapping detonating device. An upper joint of the device is provided with an upper joint circulation hole; a firing pin plug circulation hole and an elastic clamp ring are arranged on a firing pin plug; a piston sleeve is limited in a lower joint t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XU RUI, YANG XU, WU GUIXU, CAO YUXIN, TANG QILIN, XIANG HONGJUN, LI YAPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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