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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $82,891 | $15,785 | $7,636 | $16,640 | $15,649 | $15,412 |
| Articulated link chain other than roller chain, of iron/steel | $22,131 | $32,023 | $46,905 | $31,766 | $66,497 | $85,545 |
| Parts of articulated link chain of iron/steel | $99,682 | $225 | $1,259 | $413 | $88 | $2,938 |
| Skid chain of iron/steel | $3,716 | $27 | | $2,108 | $61,799 | $6,582 |
| Stud-link chain of iron/steel | $423 | $7,653 | $36 | $8,907 | $4,910 | |
| Welded link chain of iron/steel | $971 | $1,834 | $4,999 | $4,187 | $25,627 | $64,700 |
| Chain, of iron/steel, n.e.s. in 73.15 | $121,245 | $41,380 | $51,227 | $69,614 | $35,052 | $20,308 |
| Parts of chains (excl. articulated link chain), of iron/steel | $5,780 | $10,228 | $10,025 | $6,937 | $16,508 | $14,462 |
| Total | $336,839 | $109,155 | $122,087 | $140,572 | $226,130 | $209,947 |
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