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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | $3,201 | $3,909 | $1,120 | $232 | $6,179 | $97 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | $87,332 | $106,448 | $120,596 | $38,478 | $59,718 | $52,666 |
| Flanges of stainless steel | $79,438 | | | $14,691 | $4,528 | $6,323 |
| Threaded elbows, bends & sleeves of stainless steel | $68,026 | $19,368 | $461,828 | $52,240 | $86,889 | $174,881 |
| Butt welding fittings of stainless steel | $2,700 | | $6,947 | $186 | $51,935 | $17,929 |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | $7,992 | $109,487 | $139,575 | $124,897 | $112,469 | $596,738 |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | | | $88,050 | | $11,572 | |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | $1,981,898 | $3,316,337 | $2,892,207 | $3,127,010 | $3,024,074 | $3,837,255 |
| Butt welding fittings of iron/steel (excl. of cast iron/stainless steel) | | | $154,420 | $1,304 | $171,953 | $129,227 |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $21,422 | $21,820 | $325,082 | $49,676 | $130,788 | $109,091 |
| Total | $2,252,009 | $3,577,369 | $4,189,825 | $3,408,714 | $3,660,105 | $4,924,207 |
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