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| Commodity | 2005 | 2006 | 2007 | 2008 | 2010 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | $1,937,492 | $3,295,135 | $11,561,680 | $31,834,485 | $38,579,447 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | $9,581,380 | $8,244,716 | $39,694,762 | $57,012,714 | $21,550,226 |
| Flanges of stainless steel | $5,029,923 | $7,465,091 | $25,280,029 | $28,434,926 | $35,792,336 |
| Threaded elbows, bends & sleeves of stainless steel | $13,111,680 | $27,047,944 | $53,999,822 | $30,958,918 | $17,124,144 |
| Butt welding fittings of stainless steel | $3,513,142 | $4,372,070 | $63,337,641 | $28,053,913 | $17,121,228 |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | $4,524,692 | $12,022,717 | $43,155,315 | $37,986,791 | $17,454,282 |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | $34,409,016 | $185,879,353 | $296,523,028 | $92,767,159 | $15,594,246 |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | $2,934,643 | $3,166,846 | $7,622,767 | $11,241,126 | $13,282,029 |
| Butt welding fittings of iron/steel (excl. of cast iron/stainless steel) | $4,319,417 | $2,817,506 | $20,816,555 | $73,547,579 | $9,347,440 |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $7,895,967 | $8,549,382 | $22,817,370 | $64,988,099 | $20,128,131 |
| Total | $87,257,352 | $262,860,760 | $584,808,969 | $456,825,710 | $205,973,509 |
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