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| Commodity | 2005 | 2007 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $814 | $230 | $8,086 | |
| Towers & lattice masts of iron/steel | $2,821,182 | $191,787 | $4,336,290 | $2,459,201 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $11,152 | $86,491 | $158,693 | $168,339 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $47,721 | $4,719 | $992,075 | $425,263 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $80,968 | $389,637 | $4,724,090 | $9,627,414 |
| Total | $2,961,837 | $672,864 | $10,219,234 | $12,680,217 |
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