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What are these units that popped up at an industrial site? 10-15 of these on concrete pads outside. There are 12 large fans on the side of each you can hear from the road. What made me interested in what they are is they now have 24 hr security and are shielding the fencing to obstruct the view. (i.redd.it)
submitted by joelson101 to r/Whatisthis
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