`She's Real Fine, My Graphite Iron 409'

Lowly, low-tech iron is shaping up nicely for the 21st centu ry, thank you. SinterCast Inc. in Auburn Hills, Mich., has come up with an iron-casting process that can slash the weight of items such as engine blocks by up to 35% and cut the cost by 10%--yet still allow them to keep their strength.

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