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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $20,064 | $1,205 | $8,627 | $23,947 | $67,410 | | $29,474 |
| Articulated link chain other than roller chain, of iron/steel | | | | $62,098 | | | $100,742 |
| Parts of articulated link chain of iron/steel | | | $103,391 | | | | |
| Skid chain of iron/steel | | | $123,662 | $5,392 | $10,339 | | |
| Stud-link chain of iron/steel | | | | | | $12,001 | |
| Welded link chain of iron/steel | | $13,597 | | $18,953 | $5,784 | $240 | $693 |
| Chain, of iron/steel, n.e.s. in 73.15 | $52,913 | $825 | $10,702 | $4,736 | $63,921 | $657,311 | $131,016 |
| Parts of chains (excl. articulated link chain), of iron/steel | | $307,261 | $17,182 | $752,436 | $24,038 | $10,653 | $13,725 |
| Total | $72,977 | $322,888 | $263,564 | $867,562 | $171,492 | $680,205 | $275,650 |
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