http://findoutjob.info Skimmer, Reverberatory Feed 2012-05-23 en http://skimmer-reverberatory.23253.findoutjob.info/ Dargs slag from surface of copper into pan, using steel hoe. Inserts compressed-air line through furnace opening, and turns valve to focre air through molten metal to oxidize impurities. May shovel coke over surface of skimmed metal to prevent ecxess oxidation.]]>