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| Commodity | 2005 | 2006 | 2007 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,661 | $3,573 | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | $1,825 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | $13,600 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $3,882 | |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | | $68,003 | $21,792 |
| Total | $1,661 | $75,458 | $37,217 |
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