|
| Commodity | 2006 | 2010 |
| Roller chain of iron/steel | $43 | $2,373 |
| Articulated link chain other than roller chain, of iron/steel | | $484 |
| Parts of articulated link chain of iron/steel | $60 | $422 |
| Skid chain of iron/steel | $146 | |
| Welded link chain of iron/steel | $2,662 | |
| Chain, of iron/steel, n.e.s. in 73.15 | $3,601 | $354 |
| Parts of chains (excl. articulated link chain), of iron/steel | $21,661 | $1,386 |
| Total | $28,173 | $5,019 |
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