File:HOT SLAG POURS FROM SMELTER OF INSPIRATION CONSOLIDATED COPPER COMPANY - NARA - 544030.jpg
removed Category:Copper industry; added Category:Copper smelters using HotCat
← Older revision
Revision as of 23:30, 28 March 2013
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[[Category:Slag]]
[[Category:Slag]]
−
[[Category:Copper industry]]
+
[[Category:Copper smelters]]