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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Roller chain of iron/steel | $6,115 | $2,491 | $3,615 | $2,527 |
| Articulated link chain other than roller chain, of iron/steel | $16,176 | $10,088 | $16,173 | $12,070 |
| Parts of articulated link chain of iron/steel | $829 | $364 | $5,492 | $2,630 |
| Skid chain of iron/steel | | $256 | | $42 |
| Stud-link chain of iron/steel | $163 | $526 | $537 | $243 |
| Welded link chain of iron/steel | $260 | $847 | $426 | $1,423 |
| Chain, of iron/steel, n.e.s. in 73.15 | $4,800 | $9,255 | $22,031 | $44,614 |
| Parts of chains (excl. articulated link chain), of iron/steel | $4,637 | $1,651 | $2,355 | $2,787 |
| Total | $32,980 | $25,478 | $50,629 | $66,336 |
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