Novel screw head protective sleeve

The utility model discloses a novel thread head protective sleeve which comprises a plastic protective shell and a protective sleeve sleeved on the inner side of the plastic protective shell, a through groove is arranged inside the protective sleeve, fixed thread blocks are distributed on the edge i...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG WEI, YANG HAOYU, ZHENG XINFENG, PAN CHEN, CAO KAIYAN, HE XIN, ZHENG JIUZHANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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