Cross roads with one deck of rectangular road surface and two-end upward convex step passage

A layer of rectangle road surface and a crossroad with two convex rank passages warping upwards without the direction of a traffic light. A second layer or a third layer of rectangle road surface and the crossroad with two convex rank passages warping upwards can be built on the crossroad road surfa...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	CAIYONG LIN
Format:	Patent
Sprache:	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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