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In The Heat Of The Foundry, Steinway Piano 'Hearts' Are Made

05:19
Sparks fly as Dan Hensley pours liquid iron (at 2575 degrees Farenheit) into the mold for a piano plate destined for Steinway pianos, at O.S. Kelly foundry in Springfield, Ohio. (NPR)
Sparks fly as Dan Hensley pours liquid iron (at 2575 degrees Farenheit) into the mold for a piano plate destined for Steinway pianos, at O.S. Kelly foundry in Springfield, Ohio. (NPR)

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