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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Roller chain of iron/steel | $48,432 | $3,020 | $6,141 | $3,237 |
| Articulated link chain other than roller chain, of iron/steel | $45,941 | $27,829 | $16,919 | $26,818 |
| Parts of articulated link chain of iron/steel | $1,175 | $7,713 | $3,535 | $3,454 |
| Stud-link chain of iron/steel | $4,988 | $4,763 | $17,327 | $22,616 |
| Welded link chain of iron/steel | $5,897 | $7,014 | $7,393 | $3,220 |
| Chain, of iron/steel, n.e.s. in 73.15 | $18,106 | $11,086 | $16,299 | $32,759 |
| Parts of chains (excl. articulated link chain), of iron/steel | $5,255 | $2,909 | $2,553 | $16,107 |
| Total | $129,794 | $64,334 | $70,167 | $108,211 |
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