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Ángel Palomo, Ana Fernández-Jiménez, Cecilio López-Hombrados, José Luis Lleyda
Pág. Page 75 - 80
Nowadays, the tracks that comprise the world railway network are estimated to contain nearly three billion sleepers, over 400 million of which are made of concrete. At the same time, over 50% of the world demand for sleepers (around 20 million units per ...
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