Laser positioning device for drop point of drop hammer deflectometer

The utility model relates to the technical field of roadbed pavement detection, in particular to a drop hammer type deflectometer drop point laser positioning device which comprises a bottom plate, asupporting column is fixedly connected to the top of the bottom plate, a connecting plate is fixedly...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	CHEN BAOKUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE FIXED CONSTRUCTIONS MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
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