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| Commodity | 2005 | 2006 | 2007 | 2010 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $72,909 | $11,950 | | $115,993 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | | | $14,866 | |
| Total | $72,909 | $11,950 | $14,866 | $115,993 |
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