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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $286 | | | | | $50 |
| Articulated link chain other than roller chain, of iron/steel | $9,563 | $16,933 | $49,724 | $80,843 | $11,463 | $4,324 |
| Parts of articulated link chain of iron/steel | $2,668 | $11,490 | | $410 | $434 | |
| Stud-link chain of iron/steel | $732 | | | | | |
| Welded link chain of iron/steel | $11,080 | | | | $62 | |
| Chain, of iron/steel, n.e.s. in 73.15 | $8,778 | $144,891 | $173,750 | $893,304 | $44,390 | $3,624 |
| Parts of chains (excl. articulated link chain), of iron/steel | $1,893 | $37,598 | $445 | $45,563 | | $12,662 |
| Total | $35,000 | $210,912 | $223,919 | $1,020,120 | $56,349 | $20,660 |
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