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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | | $3,104 | $8,927 | | | |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | | $4,608 | $3,504 | $43,592 | $105,859 | |
| Flanges of stainless steel | $7,926 | $5,891 | | | $20,767 | |
| Threaded elbows, bends & sleeves of stainless steel | | | $244 | | | |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | $497 | | | | $18,289 | |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | | $13 | | $1 | | |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | $12,309 | $343 | $3,455 | $137 | $255 | $21,672 |
| Butt welding fittings of iron/steel (excl. of cast iron/stainless steel) | | | | $1,105 | $46 | |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | | $95,983 | $24,407 | $99,298 | $9,657 | $13,326 |
| Total | $20,732 | $109,942 | $40,537 | $144,133 | $154,873 | $34,998 |
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