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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $911 | $25,504 | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $26,088 | | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $7,361,261 | $1,756,580 | | $413,755 | $7,401 | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | | $32,359 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | | $2,362,408 | $6,590,769 | $4,538,089 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | | | $98,927 | |
| Total | $7,361,261 | $1,783,579 | $25,504 | $2,776,163 | $6,729,456 | $4,538,089 |
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