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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $27,543 | $16,037 | $154,920 | $18,011 | $4,792 | $14,054 | $130 |
| Articulated link chain other than roller chain, of iron/steel | $59,805 | $117,504 | $45,718 | $38,095 | $48,495 | $4,380 | $11,332 |
| Parts of articulated link chain of iron/steel | | | $600 | | $6,152 | | $247 |
| Skid chain of iron/steel | $1,398 | $1,648 | | $19 | | | |
| Stud-link chain of iron/steel | $346 | | | | | | |
| Chain, of iron/steel, n.e.s. in 73.15 | $3,249 | $392 | $37,667 | | | $5,688 | $2,945 |
| Parts of chains (excl. articulated link chain), of iron/steel | | $3,200 | $64,236 | $765,558 | $1,058,150 | $345,641 | $186,146 |
| Total | $92,341 | $138,781 | $303,141 | $821,683 | $1,117,589 | $369,763 | $200,800 |
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