Biography
There are at least two artists who share the alias, "Cast Iron".
1. Cast Iron - A traditional heavy metal band in the vein of Running Wild from Hämeenlinna, Finland.
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They also have a bandcamp page at http://castironheavymetal.bandcamp.com.
2. Cast Iron (aka Cast Iron Projects) - A grime/experimental group consisting of the following members; Cast Iron (DJ/Producer/MC), Christopher Benns (Manager/PR), Flash Gordan (DJ/Producer), Kizza (MC/Producer).
They also have a MySpace page at http://www.myspace.com/castironspace.
Biography text from Last.fm, available under CC BY-SA.