File:Insulation symbol.jpg

Insulation_symbol.jpg(122 × 35 pixels, file size: 7 KB, MIME type: image/jpeg)

insulation symbol

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current08:59, 25 June 2016Thumbnail for version as of 08:59, 25 June 2016122 × 35 (7 KB)Designing Buildings (Talk | contribs) (insulation symbol)

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