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Passive trial building air conditioning system

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  Passive building air conditioning unit (horizontal model)
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  Passive building air conditioning unit (vertical model)
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  Fresh air environmental control hot water integrated machine (horizontal…
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  Fresh air environmental control hot water integrated machine (vertical m…
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  Water system fresh air environmental control integrated machine
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  Efficient heat recovery fresh air fan [bypass model]
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  Efficient heat recovery fresh air fan [conventional model]
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  Large passive housing heat recovery fresh air fan
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  Efficient rotary heat recovery unit