Commodity2005200620072008200920102011
Roller chain of iron/steel$2,945$5,360$11,060$4,851$53,638$4,540$32,482
Articulated link chain other than roller chain, of iron/steel$12,791$7,738$25,870$144,035$29,719$7,597$43,442
Parts of articulated link chain of iron/steel$135$690$10,196$1,537$7,285$1,950$2,775
Skid chain of iron/steel$8,733 $438$305$426$4,744$11,292
Stud-link chain of iron/steel$257$868 $7,113 $92 
Welded link chain of iron/steel$1,589$2,475$15,759$39,886$179$644$913
Chain, of iron/steel, n.e.s. in 73.15$22,919$44,646$30,503$32,217$24,256$37,567$47,660
Parts of chains (excl. articulated link chain), of iron/steel$7,773$4,968$476$7,964$890$1,135$24,777
Total$57,142$66,745$94,302$237,908$116,393$58,269$163,341