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Sheet ingots are cast by direct chill at Commonwealth Aluminum, Lewisport. Kentucky. Having a capacity of 90,000 lbs. per cast, the casters employ a tilt-type mold carriage and an internally guided singleacting hydraulic main cylinder of 21" bore. Each casting machine is powered by a 50 hp hydraulic drive. The casting stations were built by Loma Machine, a Hill Acme Company.