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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $5,390 | $10,418 | $34,435 | $912,520 | $11,392 | $56,481 |
| Articulated link chain other than roller chain, of iron/steel | $19,779 | $62,323 | $99,621 | $41,101 | $17,165 | $354,569 |
| Parts of articulated link chain of iron/steel | $222 | $264 | $881 | $2,125 | $10,706 | $5,116 |
| Skid chain of iron/steel | $7,769 | $85,269 | $137,815 | $46,610 | $28,281 | $25,385 |
| Stud-link chain of iron/steel | $16,202 | $98 | $22,039 | $15 | | $7,932 |
| Welded link chain of iron/steel | $82,764 | $5,853 | $193,977 | $1,033,904 | $64,062 | $51,988 |
| Chain, of iron/steel, n.e.s. in 73.15 | $767,224 | $110,776 | $78,580 | $643,858 | $153,769 | $110,393 |
| Parts of chains (excl. articulated link chain), of iron/steel | $547 | $6,707 | $10,629 | $169,513 | $29,284 | $11,660 |
| Total | $899,897 | $281,708 | $577,977 | $2,849,646 | $314,659 | $623,524 |
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