Holding pole component introduction device

The utility model discloses a derrick member introduction device, which comprises an introduction beam, a guide beam and a guide beam, one end of the introduction platform is hinged with the introduction beam through a pin shaft; the introduction trolley is in sliding fit with the introduction platf...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TONG QI, WU CHENGYANG, ZHOU LIHONG, QI ZHUHUI, YAO CHENGKAI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES FENCING FIXED CONSTRUCTIONS MASTS SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL
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