Commodity2005200620072008200920102011
Roller chain of iron/steel$307,348$324,432$331,715$396,479$265,325$254,759$380,241
Articulated link chain other than roller chain, of iron/steel$290,809$468,869$679,012$887,304$633,186$540,154$484,319
Parts of articulated link chain of iron/steel$66,887$55,885$54,417$110,868$62,902$38,002$125,700
Skid chain of iron/steel$4,154,672$3,110,250$2,328,638$1,639,386$1,788,550$2,682,645$3,518,818
Stud-link chain of iron/steel$40,171$48,181$42,983$16,677$87,387$42,749$14,649
Welded link chain of iron/steel$853,768$776,640$565,770$481,961$305,201$220,484$180,461
Chain, of iron/steel, n.e.s. in 73.15$365,083$381,680$353,226$311,842$279,867$258,998$350,786
Parts of chains (excl. articulated link chain), of iron/steel$524,656$675,824$971,302$436,094$256,210$455,640$455,035
Total$6,603,394$5,841,761$5,327,063$4,280,611$3,678,628$4,493,431$5,510,009