San Francisco : Architect and Engineer, Inc · leaf 373
Sewing canvas over Johns-ManvilleBX18 insulation on a ventilating duct Western Asbestos workman applyingtape over insulation on a steam line Installing Isulotion ow temperaturea refrigeratio cork in-« system WESTERN ASBESTOS CO.S ability to do a first-class insulation job was attained through…
Architecture · Building
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