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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | | | | | | $24,153 | |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | $86,148 | | | $2,988 | | | $55,480 |
| Flanges of stainless steel | | $8,202 | $500 | $11,397 | $136 | | |
| Butt welding fittings of stainless steel | | | $3,101 | | | $351 | |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | | | | $433,774 | $16,090 | $7,521 | |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | | | $51 | $946 | $1,067 | $1,072 | $15,689 |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | | | $87,633 | | $9 | | $1,496 |
| Butt welding fittings of iron/steel (excl. of cast iron/stainless steel) | | | | | | $18,046 | |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $402 | | $49,324 | $65,626 | $552,964 | $176,525 | $1,183,652 |
| Total | $86,550 | $8,202 | $140,609 | $514,731 | $570,266 | $227,668 | $1,256,317 |
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