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  • Ground source heat pump types with geothermal energy systems outline diagram. Labeled educational scheme with underground thermal heating looped methods vector illustration. Collector pipe loop method Calendar #625641152
Ground source heat pump types with geothermal energy systems outline diagram. Labeled educational scheme with underground thermal heating looped methods vector illustration. Collector pipe loop method calendar #625641152

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Poster Calendar (Single Image) Wall Calendar (12 Months)
Enjoy a full view of the full year with a custom poster calendar.
  • - 3 different size
  • - 2 paper stock options
  • - Vivid, full-colour printing
$29.95

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