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History

The son of crimeboss Silvio "Silvermane" Manfredi, Joe Manfredi himself was the costumed supervillain known as Blackwing, but after his defeat by the Thunderbolts as a member of the Masters of Evil VII, Joe Manfredi decided to retire as a costumed supervillain, and stay on as crimeboss. He founded his own super-army: Heavy Mettle [1]

Several members of Heavy Mettle were later incorporated in the Secret Initiative under Norman Osborn's reign.[2]

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References

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