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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $456,548 | $257,785 | $473,043 | $528,901 | $130,651 | $129,566 |
| Articulated link chain other than roller chain, of iron/steel | $572,992 | $530,429 | $817,646 | $1,081,531 | $642,162 | $700,559 |
| Parts of articulated link chain of iron/steel | $107,890 | $155,385 | $55,083 | $142,903 | $33,169 | $66,428 |
| Skid chain of iron/steel | $14,784 | $12,063 | | $546 | $543 | $346 |
| Stud-link chain of iron/steel | $21,845 | $947,639 | $148,205 | $118,731 | $130,690 | $26,461 |
| Welded link chain of iron/steel | $15,588 | $48,270 | $11,320 | $299,625 | $100,231 | $86,604 |
| Chain, of iron/steel, n.e.s. in 73.15 | $613,821 | $822,502 | $643,924 | $4,088,693 | $804,789 | $360,478 |
| Parts of chains (excl. articulated link chain), of iron/steel | $392,285 | $103,936 | $318,259 | $525,478 | $191,138 | $225,917 |
| Total | $2,195,753 | $2,878,009 | $2,467,480 | $6,786,408 | $2,033,373 | $1,596,359 |
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