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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sheet piling of iron/steel, whether or not drilled/punched/made from assemb ... | | | $160,432 | $7,797 | |
| Welded angles, shapes & sections of iron/steel | $19,880 | $19,624 | $3,491 | $194,885 | $19,657 |
| Total | $19,880 | $19,624 | $163,923 | $202,682 | $19,657 |
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