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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 |
| Refractory bricks, blocks, tiles & sim. refractory ceramic constructional g ... | | $13 | | | |
| Refractory bricks, blocks, tiles & sim. refractory ceramic constructional g ... | $381 | | $2,441 | $2,044 | $2,873 |
| Total | $381 | $13 | $2,441 | $2,044 | $2,873 |
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