Drilling device for constructional engineering

A drilling device for constructional engineering comprises a drilling bit, a positioning clamping block, a sliding connecting block, a limiting inserting block, a lever pressing block and a cleaning column, a bit connecting rod and sliding connecting grooves are formed in the top of the drilling bit...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MA XIAOYU, MA FENGLEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	PERFORMING OPERATIONS TRANSPORTING WORKING CEMENT, CLAY, OR STONE WORKING STONE OR STONE-LIKE MATERIALS
Online-Zugang:	Volltext bestellen
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