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| Commodity | 2005 | 2006 | 2007 | 2008 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | | $840,714 | | $200 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $5,468 | $207 | $178 | $1,286 | $187,715 | $150,872 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $606,370 | $18,388 | $8,392 | | $399 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | | | | $3,892 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | | | $15,047 | | | $3,194 |
| Total | $611,838 | $18,595 | $23,617 | $842,000 | $188,114 | $158,158 |
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