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| Commodity | 2005 | 2006 | 2008 | 2009 | 2010 | 2011 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | | | | | $601 | $1,962 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | | | | | | $19,129 |
| Flanges of stainless steel | $26 | | | | $38,078 | $746 |
| Threaded elbows, bends & sleeves of stainless steel | | | | | $2,215 | |
| Butt welding fittings of stainless steel | $28,063 | | | | | |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | | $14,207 | | $853 | | |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | | | | $16 | | |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | | | | | $4,033 | |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $678 | | $957 | $898 | $3,654 | $2,982 |
| Total | $28,767 | $14,207 | $957 | $1,767 | $48,581 | $24,819 |
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