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i'd guess just one per day; I assume that once a plant is fully oprational and every part is in stock i'm sure they can produce like thousands per day i think depending on how much they devote to it
 
Having worked in a computer production facility, I would say, about 400-500 Machines would ship, and 25-100 would be built, but not pass QC. They would then be disassembled and tested again, and rebuilt.

Also, similarly, I believe that the delay for 17"PBs was due to a quality problem, do just greed or the inability to produce.

TEG
 
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