Commodity2005200620072008200920102011
Roller chain of iron/steel$73,106$146,658$119,478$132,228$268,849$99,444$113,549
Articulated link chain other than roller chain, of iron/steel$333,362$150,728$590,216$242,042$212,004$208,318$153,354
Parts of articulated link chain of iron/steel$34,736$79,261$82,378$36,532$4,963$7,161$17,428
Skid chain of iron/steel  $4,100$1,007$24,206$934$40,141
Welded link chain of iron/steel$43,893$85,040$77,625$67,376$193,959$107,673$80,154
Chain, of iron/steel, n.e.s. in 73.15$180,852$209,635$459,066$589,216$512,728$412,766$328,073
Parts of chains (excl. articulated link chain), of iron/steel$206,651$22,801$35,107$129,597$24,876$92,916$24,275
Total$872,600$694,123$1,367,970$1,197,998$1,241,585$929,212$756,974