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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $4,644,391 | $5,602,088 | $7,002,087 | $9,640,929 | $6,888,161 | $7,030,604 |
| Articulated link chain other than roller chain, of iron/steel | $9,393,135 | $9,657,641 | $10,818,268 | $13,231,507 | $10,077,187 | $12,448,505 |
| Parts of articulated link chain of iron/steel | $3,227,838 | $5,420,575 | $4,360,671 | $2,578,704 | $1,368,325 | $2,352,973 |
| Skid chain of iron/steel | $19,811,293 | $32,567,951 | $30,588,520 | $32,443,747 | $27,282,391 | $35,372,284 |
| Stud-link chain of iron/steel | $1,308,340 | $971,096 | $2,916,987 | $1,750,281 | $989,654 | $1,168,496 |
| Welded link chain of iron/steel | $23,051,003 | $25,484,936 | $34,190,699 | $39,957,770 | $28,046,137 | $35,184,014 |
| Chain, of iron/steel, n.e.s. in 73.15 | $3,534,459 | $4,614,226 | $5,316,447 | $4,058,280 | $3,678,902 | $4,087,399 |
| Parts of chains (excl. articulated link chain), of iron/steel | $16,178,357 | $14,176,325 | $6,015,265 | $5,940,123 | $2,871,955 | $2,893,503 |
| Total | $81,148,816 | $98,494,838 | $101,208,944 | $109,601,341 | $81,202,712 | $100,537,778 |
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