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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | | | | $16,398 | | | |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | $44,052 | | | | | | $12,059 |
| Threaded elbows, bends & sleeves of stainless steel | | | | $103 | $238 | | |
| Butt welding fittings of stainless steel | | $250 | | | | | $27,928 |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | $15 | $50 | $2,402 | $432 | | | |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | $843 | | | $14,016 | | | |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $600 | $50 | $274 | $1,776 | | $40,587 | $2,340 |
| Total | $45,510 | $350 | $2,676 | $32,725 | $238 | $40,587 | $42,327 |
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