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underground

Boring Machines for Deep Underground Lairs and Starting Underground Worlds

December 27, 2018 by Brian Wang

There are many bunkers and facilities that are very deep underground. Iran has its Furdow Nuclear Facility which is 80 meters under hard rock and special hardened cement. Iran claims to have built a military base that is under 500 meters of dirt and rock in a mountain range. A facility 500 meters underground has …

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Tags cities, military, underground, world 105 Comments

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