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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $57,587 | $283,598 | $331,042 | $414,462 | $219,388 | $287,536 |
| Articulated link chain other than roller chain, of iron/steel | $334,360 | $696,526 | $1,292,455 | $575,628 | $607,353 | $1,257,484 |
| Parts of articulated link chain of iron/steel | $28,059 | $96,363 | $30,232 | $23,008 | $97,584 | $108,028 |
| Skid chain of iron/steel | $2,417 | $3,879 | $9,964 | $2,845 | $2,636 | $2,332 |
| Stud-link chain of iron/steel | $1,742 | $74,754 | $59,591 | $116,263 | $81,902 | $51,315 |
| Welded link chain of iron/steel | $2,337 | $32,424 | $274,830 | $90,674 | $49,724 | $191,574 |
| Chain, of iron/steel, n.e.s. in 73.15 | $66,070 | $380,778 | $423,606 | $271,858 | $389,823 | $979,813 |
| Parts of chains (excl. articulated link chain), of iron/steel | $7,854 | $103,673 | $113,182 | $80,111 | $113,080 | $65,765 |
| Total | $500,426 | $1,671,995 | $2,534,902 | $1,574,849 | $1,561,490 | $2,943,847 |
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