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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $28,199,377 | $29,249,804 | $29,315,208 | $31,406,376 | $21,447,919 | $27,558,218 |
| Articulated link chain other than roller chain, of iron/steel | $15,185,281 | $15,323,531 | $19,141,414 | $23,457,207 | $17,556,127 | $22,180,956 |
| Parts of articulated link chain of iron/steel | $1,925,223 | $1,838,939 | $2,776,072 | $3,364,204 | $1,802,021 | $1,661,828 |
| Skid chain of iron/steel | $2,221,589 | $3,596,377 | $3,299,323 | $2,173,362 | $2,619,082 | $3,019,419 |
| Stud-link chain of iron/steel | $6,625,692 | $7,542,884 | $11,830,682 | $33,112,150 | $4,456,005 | $6,027,684 |
| Welded link chain of iron/steel | $3,763,573 | $3,338,360 | $3,740,513 | $3,542,376 | $3,946,685 | $4,322,210 |
| Chain, of iron/steel, n.e.s. in 73.15 | $2,123,067 | $2,351,565 | $2,905,332 | $3,089,094 | $2,613,996 | $3,537,862 |
| Parts of chains (excl. articulated link chain), of iron/steel | $1,605,475 | $1,931,622 | $2,030,188 | $1,811,498 | $1,594,546 | $2,386,242 |
| Total | $61,649,277 | $65,173,082 | $75,038,732 | $101,956,267 | $56,036,381 | $70,694,419 |
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