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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Roller chain of iron/steel | $32,595 | $40,497 | $33,288 | $19,686 |
| Articulated link chain other than roller chain, of iron/steel | $85,885 | $71,573 | $152,620 | $132,908 |
| Parts of articulated link chain of iron/steel | $3,438 | $304 | $21,264 | $6,699 |
| Skid chain of iron/steel | $7,385 | $51 | | $7,555 |
| Stud-link chain of iron/steel | $9,382 | $4,293 | $9,761 | $12,113 |
| Welded link chain of iron/steel | $49,114 | $77,062 | $129,797 | $137,958 |
| Chain, of iron/steel, n.e.s. in 73.15 | $17,966 | $80,251 | $33,973 | $53,379 |
| Parts of chains (excl. articulated link chain), of iron/steel | $4,654 | $19,991 | $17,856 | $66,686 |
| Total | $210,419 | $294,022 | $398,559 | $436,984 |
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