|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Roller chain of iron/steel | | $11 | | | $15,378 |
| Articulated link chain other than roller chain, of iron/steel | $2 | $1,455 | $116 | $40 | $14,122 |
| Parts of articulated link chain of iron/steel | $1 | | | | $2,020 |
| Skid chain of iron/steel | | | | | $23,896 |
| Welded link chain of iron/steel | | $2,210 | | | |
| Chain, of iron/steel, n.e.s. in 73.15 | $227 | | | | $1,000 |
| Parts of chains (excl. articulated link chain), of iron/steel | $25 | | | | $918 |
| Total | $255 | $3,676 | $116 | $40 | $57,334 |
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