|
| Commodity | 2005 | 2006 | 2007 |
| Roller chain of iron/steel | $30,794 | $7,412 | $46,375 |
| Articulated link chain other than roller chain, of iron/steel | $24,370 | $6,338 | $1,109 |
| Parts of articulated link chain of iron/steel | $141 | $927 | $21 |
| Skid chain of iron/steel | | $3,258 | |
| Stud-link chain of iron/steel | $46,539 | $188 | $112 |
| Welded link chain of iron/steel | $673 | $992 | $228 |
| Chain, of iron/steel, n.e.s. in 73.15 | $725 | $7,472 | $263 |
| Parts of chains (excl. articulated link chain), of iron/steel | $21,334 | $7,814 | $89 |
| Total | $124,576 | $34,401 | $48,197 |
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