Heightened valve well

The utility model provides a heightened valve well, which comprises a well body, and the upper port of the well body is provided with a well body waterproof edge and a well body flange extending outwards; the heightening frame is detachably connected to the well body, the lower port of the heighteni...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	WEI CHUNLIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
Online-Zugang:	Volltext bestellen
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