Roof drainage combination device

The utility model relates to the technical field of buildings, in particular to a roof drainage combination device which comprises a pre-buried sleeve and a rainwater grate, the rainwater grate is connected with the pre-buried sleeve in an up-down mode, an annular edge is arranged at a port of the p...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG LIN, LI JINGYU, LIU ZHUANGLIN, LI XI, MENG SHIMING, ZHOU CHANGJIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BUILDING FIXED CONSTRUCTIONS GUTTERS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ROOF COVERINGS ROOF-WORKING TOOLS SEPARATION SKY-LIGHTS TRANSPORTING
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