Category:Impermeability of concrete (1908)
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Media in category "Impermeability of concrete (1908)"
The following 2 files are in this category, out of 2 total.
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Impermeability of concrete (1908) (14775017111).jpg 3,648 × 2,535; 2.48 MB
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Impermeability of concrete (1908) (14798033543).jpg 3,504 × 2,536; 2.48 MB