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| Sub-Chapter | 2005 | 2006 | 2007 | 2009 | 2011 |
| Sheet piling of iron or steel | | | | $959 | $3,502,977 |
| Railway or tramway track construction material of iron or steel | | $4,068 | $10,061 | $8,900 | |
| Tubes, pipes and hollow profiles, of cast iron. | $59,513 | $6,719 | $13,188 | $34,771 | $43,675 |
| Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) ... | $957,112 | $1,060,493 | $660,772 | $437,566 | $251,456 |
| Other tubes and pipes (for example, welded, riveted or similarly closed) | $4,220,572 | $4,383,986 | $3,522,443 | $599,224 | $3,495,871 |
| Other tubes, pipes and hollow profiles | $58,176,324 | $73,474,043 | $106,274,375 | $46,633,033 | $112,331,386 |
| Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or ... | $5,973,900 | $5,797,856 | $7,919,051 | $7,852,270 | $6,325,061 |
| Structures (excluding prefabricated buildings of heading 94.06) | $7,964,375 | $18,405,561 | $26,433,745 | $33,891,772 | $19,232,039 |
| Reservoirs, tanks, vats and similar containers for any material | $787,561 | $454,516 | $609,374 | $425,695 | $225,800 |
| Tanks, casks, drums, cans, boxes and similar containers, for any material | $220,182 | $708,762 | $799,572 | $483,307 | $699,061 |
| Containers for compressed or liquefied gas, of iron or steel. | $8,211 | $41,040 | $44,201 | $245,382 | $1,102,840 |
| Stranded wire, ropes, cables, plaited bands, slings and the like, of iron o ... | $25,062 | $47,722 | $51,312 | $56,155 | $25,492 |
| Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or n ... | $235,846 | $136,203 | $338,001 | $460,284 | $534,103 |
| Cloth (including endless bands), grill, netting and fencing, of iron or ste ... | $1,115,889 | $1,858,795 | $3,783,359 | $7,647,745 | $5,674,558 |
| Chain and parts thereof, of iron or steel. | $6,509 | $4,641 | $10,393 | $8,416 | $20,064 |
| Anchors, grapnels and parts thereof, of iron or steel. | $1,140 | $194 | $4,778 | $13,001 | |
| Nails, tacks, drawing pins, corrugated nails, staples | $3,163,847 | $2,703,798 | $3,895,434 | $4,066,110 | $5,047,029 |
| Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pin ... | $147,882 | $519,163 | $1,106,537 | $516,355 | $487,674 |
| Sewing needles, knitting needles, bodkins, crochet hooks, embroidery stilet ... | $55 | $11,040 | $2,953 | $2,574 | $990 |
| Springs and leaves for springs, of iron or steel. | $296,660 | $367,811 | $397,141 | $245,247 | $151,511 |
| Stoves, ranges, grates, cookers | $4,193,059 | $5,419,100 | $8,044,363 | $14,808,983 | $16,110,285 |
| Radiators for central heating, not electrically heated, and parts thereof | $15,242 | $56,860 | $84,720 | $119,889 | $17,792 |
| Table, kitchen or other household articles and parts thereof, of iron or st ... | $13,286 | $19,849 | $38,525 | $36,453 | $162,533 |
| Sanitary ware and parts thereof, of iron or steel. | $15,444 | $3,847 | $33,763 | $99,106 | $101,358 |
| Other cast articles of iron or steel. | $988,960 | $719,057 | $1,042,259 | $1,204,754 | $2,542,860 |
| Other articles of iron or steel. | $949,031 | $1,416,932 | $3,151,013 | $3,104,755 | $2,579,787 |
| Total | $89,535,662 | $117,622,056 | $168,271,333 | $123,002,706 | $180,666,202 |
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