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| Commodity | 2005 | 2006 | 2010 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $2,097,568 | $23,613,829 | $46,279 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | | $1,624,214 | $53,945 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $4,070,397 | $8,817,926 | $10,739,624 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $558,347 | $2,302,739 | $72,891 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $26,652 | $206,123 | $740,052 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $4,396,145 | $10,703,279 | $8,921,481 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $3,836,769 | $20,357,516 | $2,861,528 |
| Total | $14,985,878 | $67,625,626 | $23,435,800 |
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