Commodity2005200620072008200920102011
Roller chain of iron/steel$237,430$23,003$51,061$109,057$160,446$430,438$699,026
Articulated link chain other than roller chain, of iron/steel$6,737$30,872$9,391$10,984$431,125$62,692$43,715
Parts of articulated link chain of iron/steel$16,990$26,593$36,254$51,242$36,968$36,190$76,730
Skid chain of iron/steel$72,821$144,632$125,531$207,561$418,552$950,295$773,883
Stud-link chain of iron/steel$345,869$18,201$24,096$24,736$8,600$37,957$34,918
Welded link chain of iron/steel $16,055$209,931$468,093$330,905$110,376$417,546
Chain, of iron/steel, n.e.s. in 73.15$5,690$59,887$31,239$44,305$90,623$32,401$19,038
Parts of chains (excl. articulated link chain), of iron/steel$17,176$22,397$6,464$102,592$131,015$80,676$113,527
Total$702,713$341,640$493,967$1,018,570$1,608,234$1,741,025$2,178,383