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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Cast arts. of non-malleable cast iron, n.e.s. | $218 | $23,724 | $8,345 | $2,366 | $8,873 | $69,524 |
| Grinding balls & sim. cast arts. for mills, of iron/steel | $501,682 | $3,378,965 | $3,845,138 | $7,736,017 | $2,438,937 | $7,116,306 |
| Cast arts. of iron (excl. non-malleable cast iron)/steel, n.e.s. | $39,677 | $31,843 | $55,469 | $168,154 | $73,887 | $570,322 |
| Total | $541,577 | $3,434,532 | $3,908,952 | $7,906,537 | $2,521,697 | $7,756,152 |
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