Commodity2005200620072008200920102011
Roller chain of iron/steel$6,535   $4,739$77$4,205
Articulated link chain other than roller chain, of iron/steel$926  $16,835$1,197$10,806$12,864
Parts of articulated link chain of iron/steel    $801  
Skid chain of iron/steel     $5,019 
Stud-link chain of iron/steel  $14,593$1,399 $2,713$85
Welded link chain of iron/steel  $4,875    
Chain, of iron/steel, n.e.s. in 73.15 $7,351$13,785$5,835  $20,621
Parts of chains (excl. articulated link chain), of iron/steel   $9,468$161,077$15,678$105
Total$7,461$7,351$33,253$33,537$167,814$34,293$37,880