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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $2,391,388 | $2,029,861 | $2,212,776 | $2,386,577 | $1,626,006 | $1,666,941 | $2,046,385 |
| Articulated link chain other than roller chain, of iron/steel | $428,532 | $522,563 | $551,462 | $441,227 | $1,323,524 | $870,960 | $861,844 |
| Parts of articulated link chain of iron/steel | $55,202 | $80,806 | $250,014 | $112,028 | $145,468 | $74,361 | $85,305 |
| Skid chain of iron/steel | $829,380 | $712,078 | $1,013,394 | $1,159,734 | $1,240,141 | $767,970 | $557,865 |
| Stud-link chain of iron/steel | $257,097 | $692,102 | $663,748 | $350,066 | $335,844 | $183,458 | $140,978 |
| Welded link chain of iron/steel | $1,602,268 | $966,071 | $2,384,389 | $1,836,694 | $1,543,535 | $1,440,624 | $820,221 |
| Chain, of iron/steel, n.e.s. in 73.15 | $2,853,311 | $3,687,144 | $5,133,160 | $5,904,138 | $5,104,252 | $6,230,580 | $8,039,730 |
| Parts of chains (excl. articulated link chain), of iron/steel | $559,017 | $1,027,537 | $885,886 | $2,027,805 | $1,440,253 | $1,954,430 | $1,584,866 |
| Total | $8,976,195 | $9,718,162 | $13,094,829 | $14,218,269 | $12,759,023 | $13,189,324 | $14,137,194 |
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