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DE1118242B
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Edging for heat compensation pits
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Soaking pit curb
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Soaking pit curb
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Method of alternate low and high fuel firing of a soaking pit furnace
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Partible soaking pit cover
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Soaking pit curb wall with fixed elevation
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Method and apparatus for heating steel
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Support for conveyer rollers
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Method and apparatus for artificially compensating for thermal load changes in heat-treatment furnaces
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Recuperator tube tile structure
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Finned recuperator tubes and method of manufacture
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