#tunnels
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German company expects renewal of projects for construction of sewerage system in Azerbaijan
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Azerbaijan discloses number of bridges built in 2020
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Automobile tunnel in Turkey's north-west over 65% complete
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Automobile tunnel in Turkey's north-west over 50% complete
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530-km long tunnels being constructed in Iran
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Ministry discloses opening date of road tunnel in northeastern Turkey
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Ministry: Turkey to open tender for construction of Great Istanbul Tunnel
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Kazakhstan building first tunnel road
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Kazakhstan building first tunnel road
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Turkey to build special tunnels for heavy vehicles
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Turkey to build special tunnels for heavy vehicles