Owens-Corning Fiberglas Corp., Toledo, Ohio. Intense heat is needed to melt the inorganic ingredients of the batch from which Fiberglas insulation wool is manufactured. Twenty-four hours a day, seven days a week, this gas-fired furnace maintains the tempe

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Date taken	1939
Date uploaded	2008-01-09
Tags	libraryofcongress, dc:identifier=httphdllocgovlocpnpfsac1a35078, xmlns:dc=httppurlorgdcelements11, furnace, industry, fiberglas, gasfurnace, insulation, wool, toledo, ohio, owenscorning, 1942, heat, night, unitedstates, bricks, lucascounty
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