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Idea to convert A55 Britannia crossing into 'zipper bridge' being 'seriously considered' - North Wales Live
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Un "Zipper" pruebas de camiones de carretera cambiar de carriles de una carretera nueva barrera en el puente Golden Gate en San Francisco el 11 de enero de 2015. El famoso span
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Idea to convert A55 Britannia crossing into 'zipper bridge' being 'seriously considered' - North Wales Live
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Vista de la máquina de transferencia de barrera de Zipper Road en el puente Golden Gate Fotografía de stock - Alamy
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A 'Road Zipper' Truck Moving 1500 Pound Median Barriers on the Golden Gate Bridge | Golden gate bridge, Golden gate, Road
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