|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Roller chain of iron/steel | $1,853,270 | $1,183,553 | $3,085,779 | $3,620,631 | $1,491,924 |
| Articulated link chain other than roller chain, of iron/steel | $509,043 | $786,249 | $384,219 | $2,828,289 | $1,319,944 |
| Parts of articulated link chain of iron/steel | $57,868 | $68,172 | $878,567 | $860,612 | $162,605 |
| Skid chain of iron/steel | $2,656,053 | $2,140,314 | $3,944,826 | $5,299,053 | $2,313,011 |
| Stud-link chain of iron/steel | $61,144 | $159,192 | $177,353 | $223,386 | $161,501 |
| Welded link chain of iron/steel | $1,914,885 | $1,754,941 | $2,731,967 | $2,859,592 | $1,553,813 |
| Chain, of iron/steel, n.e.s. in 73.15 | $1,988,762 | $2,344,949 | $4,735,998 | $5,962,936 | $1,848,065 |
| Parts of chains (excl. articulated link chain), of iron/steel | $479,490 | $2,446,168 | $1,766,770 | $2,983,930 | $565,353 |
| Total | $9,520,515 | $10,883,538 | $17,705,479 | $24,638,429 | $9,416,216 |
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