HowStuffWorks Show: Episode 12: Military Steel
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Steel has been part of the military since the first armored tank rolled onto the battlefield. Learn how the military improves and creates harder steel that can handle today's weapons on Discovery... (more info)

Steel has been part of the military since the first armored tank rolled onto the battlefield. Learn how the military improves and creates harder steel that can handle today's weapons on Discovery Channel's "HowStuffWorks" show.

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