Feature article in Construction Today magazine about the longest railway tunnel in the world

http://www.construction-today.com/featured-content/exclusive-features/3476-drill-king-international-dki-idt

Drill King International featured in Construction Today magazine!
Read more about the longest railway tunnel in the world:
http://www.construction-today.com/featured-content/exclusive-features/3476-drill-king-international-dki-idt

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