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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $3,633,738 | $3,581,844 | $4,620,306 | $5,431,598 | $2,927,305 | $709,123 | $790,391 |
| Articulated link chain other than roller chain, of iron/steel | $214,849 | $217,618 | $333,228 | $379,075 | $181,860 | $268,649 | $546,349 |
| Parts of articulated link chain of iron/steel | $110,270 | $112,597 | $120,486 | $174,729 | $150,417 | $152,385 | $91,702 |
| Skid chain of iron/steel | $138,920 | $153,938 | $129,118 | $120,513 | $96,490 | $93,634 | $583,895 |
| Stud-link chain of iron/steel | $79,887 | $74,277 | $159,706 | $102,380 | $123,328 | $146,683 | $94,044 |
| Welded link chain of iron/steel | $135,943 | $196,679 | $273,923 | $285,784 | $243,454 | $236,644 | $402,455 |
| Chain, of iron/steel, n.e.s. in 73.15 | $205,714 | $224,832 | $324,413 | $407,462 | $297,853 | $269,614 | $380,122 |
| Parts of chains (excl. articulated link chain), of iron/steel | $138,572 | $89,410 | $166,669 | $309,217 | $239,747 | $107,369 | $151,494 |
| Total | $4,657,893 | $4,651,195 | $6,127,849 | $7,210,758 | $4,260,454 | $1,984,101 | $3,040,452 |
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