Landscape is with sewer well lid structure that has sight

Landscape is with sewer well lid structure that has sight, including well lid body, reference column and spacing post, the circular limit mouth of four symmetric distributions is offered at the borderon the well lid body, the central through hole has been seted up at well lid body center, and the ce...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FAN GUOWEN, YU YEBO, LI XIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CESSPOOLS FIXED CONSTRUCTIONS SEWERAGE SEWERS WATER SUPPLY
Online-Zugang:	Volltext bestellen
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