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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $21,728,116 | $28,179,742 | $31,661,464 | $40,915,421 | $35,163,908 | $36,050,542 |
| Articulated link chain other than roller chain, of iron/steel | $2,162,738 | $2,747,619 | $3,238,494 | $1,887,656 | $1,474,814 | $1,827,661 |
| Parts of articulated link chain of iron/steel | $1,936,390 | $2,768,977 | $3,171,226 | $5,578,974 | $1,187,385 | $1,500,061 |
| Skid chain of iron/steel | $1,256,104 | $1,688,523 | $1,663,864 | $1,127,289 | $1,096,692 | $2,307,786 |
| Stud-link chain of iron/steel | $2,452,512 | $1,827,977 | $4,955,898 | $6,944,982 | $3,499,368 | $3,736,227 |
| Welded link chain of iron/steel | $2,610,458 | $2,569,219 | $3,491,094 | $3,072,414 | $2,670,571 | $8,778,873 |
| Chain, of iron/steel, n.e.s. in 73.15 | $2,226,165 | $4,226,333 | $3,894,705 | $4,008,138 | $1,804,100 | $2,994,817 |
| Parts of chains (excl. articulated link chain), of iron/steel | $3,313,130 | $4,339,404 | $8,860,213 | $5,215,000 | $3,538,436 | $4,551,910 |
| Total | $37,685,613 | $48,347,794 | $60,936,958 | $68,749,874 | $50,435,274 | $61,747,877 |
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