Bottleneck thread double-layer protection jig

A double-layer protection jig for bottle mouth threads relates to the field of bottle mouth jigs and comprises a jig shell, a first space with an opening is arranged in the jig shell, a third space is arranged on the outer side of the first space, and four second spaces are distributed on the inner...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GUO MING, MO YONGHONG
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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