Commodity2005200620072010
Roller chain of iron/steel  $575 
Articulated link chain other than roller chain, of iron/steel$5,797$1,225$345$400
Parts of articulated link chain of iron/steel$10   
Chain, of iron/steel, n.e.s. in 73.15$1,301$611$2,500 
Total$7,108$1,836$3,420$400