|
| Commodity | 2005 | 2006 | 2010 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $32,621,952 | $22,148,324 | $47,059,524 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $3,145,966 | $5,243 | $20,965,700 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $15,999,860 | $5,087,278 | $43,942,550 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $8,129,326 | $1,547,742 | $14,274,655 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $3,777,990 | $45,748 | $5,257,900 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $1,663,192 | $649,754 | $1,695,923 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $8,001,082 | $1,210,478 | $13,814,340 |
| Total | $73,339,368 | $30,694,567 | $147,010,592 |
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