| http://www.w3.org/ns/prov#value | - LimitedDegassing molten metalsUS4291634 *May 29, 1980Sep 29, 1981Union Carbide CorporationSolid refuse disposal apparatusUS4373705 *Dec 29, 1980Feb 15, 1983Kawasaki Steel CorporationMethod and apparatus for separating slag and pouring molten steel out of a container such as a converter or the l
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