Novel constructional engineering hole reserving device

The utility model discloses a novel constructional engineering hole reserving device. The utility model belongs to the field of constructional engineering, the utility model discloses a novel constructional engineering hole reserving device. Stand column, moving grooves are formed in the surfaces of...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YAN JIANQUAN, CHEN YING, XU XIAO, SHI WANLU, YANG ZHENCHAO, SHI LIUKUI, YU YUE, HU SHENGLI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	PERFORMING OPERATIONS TRANSPORTING WORKING CEMENT, CLAY, OR STONE WORKING STONE OR STONE-LIKE MATERIALS
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