http://www.newyorksbestroof.com/labels/aluminum Wed, 23 Nov 2011 22:48:56 +0000 Joomla! 1.5 - Open Source Content Management en-gb http://www.newyorksbestroof.com/why-aluminum-roofing http://www.newyorksbestroof.com/why-aluminum-roofing Deposits of bauxite ore are mined and refined into alumina--one of the feedstocks for aluminum metal. Then alumina and electricity are combined in a cell with a molten electrolyte called cryolite. Direct current electricity...]]> Aluminum Tue, 18 May 2010 21:40:50 +0000