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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $6,241,049 | $5,932,475 | $6,587,935 | $8,341,523 | $7,658,286 | $9,128,699 | $11,399,793 |
| Articulated link chain other than roller chain, of iron/steel | $2,971,266 | $1,789,385 | $4,584,374 | $3,830,419 | $3,349,917 | $3,340,212 | $4,414,183 |
| Parts of articulated link chain of iron/steel | $2,008,870 | $1,947,327 | $2,968,135 | $4,196,314 | $3,346,256 | $3,298,525 | $4,594,746 |
| Skid chain of iron/steel | $842,335 | $1,321,608 | $893,733 | $1,636,986 | $1,550,099 | $1,704,927 | $2,264,670 |
| Stud-link chain of iron/steel | $2,475,643 | $952,139 | $1,272,322 | $1,423,858 | $1,840,168 | $965,614 | $1,729,895 |
| Welded link chain of iron/steel | $3,594,146 | $4,141,776 | $4,728,915 | $6,901,351 | $4,300,491 | $5,692,353 | $8,293,260 |
| Chain, of iron/steel, n.e.s. in 73.15 | $10,451,996 | $9,668,194 | $10,518,408 | $10,084,498 | $7,379,559 | $7,767,771 | $7,913,064 |
| Parts of chains (excl. articulated link chain), of iron/steel | $4,400,853 | $4,676,082 | $7,874,854 | $9,056,813 | $3,795,910 | $4,927,704 | $3,772,441 |
| Total | $32,986,158 | $30,428,986 | $39,428,676 | $45,471,762 | $33,220,686 | $36,825,805 | $44,382,052 |
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