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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $10,088 | $1,776 | $2,323 | $34,328 | $3,616 | $23,210 |
| Articulated link chain other than roller chain, of iron/steel | $4,602 | $2,267 | $184 | | $547 | $12,067 |
| Parts of articulated link chain of iron/steel | $8,413 | $268 | | $1,519 | $3,879 | $1,675 |
| Skid chain of iron/steel | | | | | $2,287 | |
| Stud-link chain of iron/steel | $12,846 | | | $440 | | |
| Welded link chain of iron/steel | | | | $24,065 | $841 | |
| Chain, of iron/steel, n.e.s. in 73.15 | $5,455 | $288 | | $26,274 | $1,850 | $15,489 |
| Parts of chains (excl. articulated link chain), of iron/steel | $4,183 | | | $38,158 | $92 | $271 |
| Total | $45,587 | $4,599 | $2,507 | $124,784 | $13,112 | $52,712 |
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