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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $152,779 | $143,768 | $58,029 | $205,335 | $264,058 | $182,677 | $2,302,863 |
| Articulated link chain other than roller chain, of iron/steel | $367,430 | $215,944 | $162,595 | $646,004 | $414,192 | $413,290 | $218,050 |
| Parts of articulated link chain of iron/steel | $76,590 | $16,896 | $30,894 | $71,324 | $143,435 | $73,024 | $43,006 |
| Skid chain of iron/steel | $3,410 | $57,713 | $6,465 | $84,287 | | $38,563 | $116,842 |
| Stud-link chain of iron/steel | $19,787 | $23,649 | $47,729 | $333,340 | $37,084 | $61,602 | $60,895 |
| Welded link chain of iron/steel | $82,066 | $43,332 | $47,096 | $142,481 | $119,573 | $78,839 | $92,468 |
| Chain, of iron/steel, n.e.s. in 73.15 | $324,744 | $350,031 | $479,076 | $651,252 | $161,038 | $127,039 | $441,466 |
| Parts of chains (excl. articulated link chain), of iron/steel | $29,242 | $84,726 | $17,902 | $171,284 | $268,092 | $150,644 | $372,952 |
| Total | $1,056,048 | $936,059 | $849,786 | $2,305,307 | $1,407,472 | $1,125,678 | $3,648,542 |
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