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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | $2,133 | $15,962 | | | | | |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | | $38,195 | $215,157 | $163,244 | $1,767 | | $246 |
| Flanges of stainless steel | $350 | $998 | | $86,719 | $2,068 | $2,365 | |
| Threaded elbows, bends & sleeves of stainless steel | | | | | | $40,545 | $7,626 |
| Butt welding fittings of stainless steel | | | | $1,540 | | | $277 |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | $2,133 | $5,879 | $40,882 | $21,521 | $179,967 | $63 | $210 |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | | | | | $11,842 | $104,269 | |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | $140 | $3,171 | $2,707 | $5,528 | $7,895 | $19,713 | $202 |
| Butt welding fittings of iron/steel (excl. of cast iron/stainless steel) | $595 | | | | | | |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $9,827 | $18,029 | $79,300 | $127,405 | $895,212 | $6,671 | $148,377 |
| Total | $15,178 | $82,234 | $338,046 | $405,957 | $1,098,751 | $173,626 | $156,938 |
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