File:Comparison of Concrete and Steel Headframes.png

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Comparison_of_Concrete_and_Steel_Headframes.png ‎(595 × 335 pixels, file size: 45 KB, MIME type: image/png)

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current13:20, 11 February 2011Thumbnail for version as of 13:20, 11 February 2011595 × 335 (45 KB)NJones (talk | contribs)
14:38, 8 February 2011Thumbnail for version as of 14:38, 8 February 2011598 × 358 (47 KB)NJones (talk | contribs)
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