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How iron mined in Minnesota is made into steel; iron weapons revolutionize warfare; military metallurgists customize weapons and demonstrate their firepower; iron magnets.
How iron mined in Minnesota is made into steel; iron weapons revolutionize warfare; military metallurgists customize weapons and demonstrate their firepower; iron magnets.
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S14, EP21 "Iron"How iron mined in Minnesota is made into steel; iron weapons revolutionize warfare; military metallurgists customize weapons and demonstrate their firepower; iron magnets.
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