Kilns are thermally insulated chambers, or ovens, in which controlled temperature regimes are produced. They are used to harden, burn or dry materials.
http://en.wikipedia.org/wiki/Kiln

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Evenheat Manufactures Electric Kilns For Glass, Pottery, Ceramic, Porcelain, China and Knife Work. Our lines include RampMaster 2 kilns and controls, GTS glass kilns and the Hot ...
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Art gallery, film maker and visual media services collaborative based in Brisbane, Queensland. CLICK on the above thumbnail to view artworks from 'The Illustrators ...
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Kiln insurance underwriters at Lloyd's of London, providing insurance and reinsurance solutions to brokers and their customers worldwide
http://www.kilnplc.com/