Antitheft well lid with direction indicating function

The invention discloses an antitheft well lid with a direction indicating function. The antitheft well lid comprises a well lid support, a concrete seat and a well lid body covering the well lid support. A direction indicating layer is arranged on the upper surface of the well lid body. A plurality...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HONG YOUJING, QIU JIANSONG, XIE ZHIMIN
Format:	Patent
Sprache:	eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
Online-Zugang:	Volltext bestellen
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