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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | $1,400 | | | | | |
| Flanges of stainless steel | $200 | | | | | |
| Threaded elbows, bends & sleeves of stainless steel | $1,880 | $177 | | | | |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | $1,440 | | | | | |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | $14,000 | $65,431 | | | | |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | $16,200 | $48,972 | | | | $1,876 |
| Butt welding fittings of iron/steel (excl. of cast iron/stainless steel) | | $2,096 | | | | |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $19,360 | $188,041 | $334,558 | $302,646 | $240,120 | $65,075 |
| Total | $54,480 | $304,717 | $334,558 | $302,646 | $240,120 | $66,951 |
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