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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | | | | $5,000 | $2,042 | |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | | | $433 | | | |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | | | | | | $940 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | | | $2,470 | $10,167 | | |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $15,000 | | | $16,000 | | |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | | | | | | $2,100 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $21,405 | $20,680 | $39,674 | $15,979 | $30,704 | $264,988 |
| Total | $36,405 | $20,680 | $42,577 | $47,146 | $32,746 | $268,028 |
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