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New breakthrough on SS77

03/04/2012
New breakthrough on SS77

 On 26.03.2012, breakthrough of the 3,472 m south tube was achieved on the SS77 Varano tunnel in Serravalle del Chienti municipality on Marche-Umbria quadrilateral in Italy. For more click here and visit www.quadrilaterospa.it. 14/12.

 



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