|
| Commodity | 2005 | 2006 | 2007 | 2009 | 2011 |
| Roller chain of iron/steel | $2,887 | $1,431 | $109 | $4,435 | $19,511 |
| Articulated link chain other than roller chain, of iron/steel | | | $8,660 | $536 | $484 |
| Parts of articulated link chain of iron/steel | $105 | | | | |
| Skid chain of iron/steel | $92 | | | $2,408 | |
| Welded link chain of iron/steel | | | | $660 | |
| Chain, of iron/steel, n.e.s. in 73.15 | | $15 | $458 | $377 | $69 |
| Parts of chains (excl. articulated link chain), of iron/steel | $3,425 | $3,195 | $1,166 | | |
| Total | $6,509 | $4,641 | $10,393 | $8,416 | $20,064 |
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