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 Collosa is awarded the state contract for the conservation of 190 kilometers of the roads of Soria March 2018 - Castilla y León Económica (Spanish Version) |
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 Collosa participates in the electric interconection works with France that double the exchange capacity April 2018 - Castilla y León Económica (Spanish Version) |
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News Library
Corporación Llorente
Valladolid - Málaga - Doha
