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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $511,182 | $504,920 | $764,520 | $749,362 | $841,749 | $709,298 |
| Articulated link chain other than roller chain, of iron/steel | $1,334,623 | $1,467,617 | $1,712,222 | $2,851,692 | $2,762,646 | $2,398,831 |
| Parts of articulated link chain of iron/steel | $254,368 | $175,582 | $628,923 | $793,115 | $408,829 | $158,109 |
| Skid chain of iron/steel | $19,193 | $29,746 | $42,597 | $86,498 | $32,985 | $53,837 |
| Stud-link chain of iron/steel | $85,864 | $50,182 | $24,762 | $98,098 | $134,221 | $105,595 |
| Welded link chain of iron/steel | $332,418 | $310,716 | $390,999 | $1,077,956 | $607,659 | $643,271 |
| Chain, of iron/steel, n.e.s. in 73.15 | $1,085,689 | $1,351,005 | $2,381,753 | $2,083,817 | $1,951,378 | $4,348,372 |
| Parts of chains (excl. articulated link chain), of iron/steel | $234,245 | $170,910 | $177,802 | $420,653 | $546,499 | $770,076 |
| Total | $3,857,582 | $4,060,678 | $6,123,578 | $8,161,191 | $7,285,966 | $9,187,389 |
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