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| Commodity | 2005 | 2006 | 2007 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | $1,867,497 | $779,947 | $445,018 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | $253,669 | $633,669 | $229,940 |
| Flanges of stainless steel | $187,348 | $307,868 | $105,071 |
| Threaded elbows, bends & sleeves of stainless steel | $667,960 | $144,099 | $98,580 |
| Butt welding fittings of stainless steel | $19,609 | $20,004 | $36,757 |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | $122,034 | $79,967 | $258,032 |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | $876,374 | $1,014,539 | $543,715 |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | $256,634 | $420,774 | $333,063 |
| Butt welding fittings of iron/steel (excl. of cast iron/stainless steel) | $40,885 | $45,392 | $97,016 |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $695,109 | $770,365 | $913,428 |
| Total | $4,987,119 | $4,216,624 | $3,060,620 |
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