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| Colliery Engineering | August, 1929 |
The Efficiency of Heat Insulators
Drawings and Photographs accompanying the article
Apparatus for Testing Pipe Insulation
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Apparatus for Testing Pipe Insulation
Image Reference: L-00391-03-0065-F01
Article reproduced from a copy of the magazine held at National Mining Museum Scotland, Newtongrange, Midlothian.
Contains public sector information licensed under the 
