Commodity2005200620072008200920102011
Roller chain of iron/steel$92,132$55,728$59,467$168,587$63,170$58,953$17,153
Articulated link chain other than roller chain, of iron/steel$220,965$242,481$157,666$196,132$116,506$153,741$147,983
Parts of articulated link chain of iron/steel$23,774$2,431$17,244$6,044$3,968$2,743$25,702
Skid chain of iron/steel$513$100$1,861$453$759$337 
Stud-link chain of iron/steel$18,358$6,308$3,573$6,086$2,202$17,684$3,545
Welded link chain of iron/steel$19,752$59,574$4,600$16,417$4,263$17,168$7,666
Chain, of iron/steel, n.e.s. in 73.15$97,487$60,197$112,574$76,640$51,557$49,436$51,071
Parts of chains (excl. articulated link chain), of iron/steel$38,345$35,615$31,849$27,499$14,192$13,471$18,450
Total$511,326$462,434$388,834$497,858$256,617$313,533$271,570