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Deutsch: Niedrigenergiehäuser
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Nederlands: Energiezuinige bouwwerken
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Q15808102 
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Energiestandard (de)

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This category has the following 24 subcategories, out of 24 total.

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Pages in category "Low-energy buildings"

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Media in category "Low-energy buildings"

The following 34 files are in this category, out of 34 total.