
August 14th, 2002, 07:39 PM
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Major General
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Join Date: May 2002
Location: Linghem, Östergötland, Sweden
Posts: 2,255
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Re: Making oxygen
If I build an climate control 1 facility (Tech 1) can I upgrade it up to tech 7 or must I scrap it after tech 3 and build another kind of facility ?
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