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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 ... | | $18,324 | $34,475 | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $102,478 | $22,060 | | $11,133 | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $2,226 | | | | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $141 | | | | | |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $41,212 | $51,782 | $18,445 | $64,039 | $78,193 | $128,643 |
| Total | $43,579 | $172,584 | $74,980 | $64,039 | $89,326 | $128,643 |
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