Nut pre-tightening device for engineering construction

The invention relates to the field of equipment application of engineering construction, in particular to a nut pre-tightening device for engineering construction. The nut pre-tightening device for engineering construction is easy and convenient to operate and can adapt to different use modes. A nut...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	XIE ZAIJUN, XIE CHANGKUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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