Small-caliber high-pressure tapping machine and tapping method thereof

The invention discloses a small-caliber high-pressure tapping machine which comprises an outer sheath and a drill pipe; the outer sheath is formed by a fixed sleeve and a rotary sleeve, the rotary sleeve is formed by an inner wall and an outer wall, an external thread is formed on the outer surface...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XU LINA, YANG ZHENGSUI, LIU SUPING, XU XINGBIN, XU XIN, NIU XIAOXIA, XING SHOUXIN, DU SHIZENG, SONG CAIZHEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BORING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS TRANSPORTING TURNING
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