|
| Commodity | 2005 | 2007 | 2010 | 2011 |
| Furnace burners for liquid fuel | | $8,574 | $50,870 | $212,794 |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | | | | $108,148 |
| Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... | | | | $8,260 |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $15,527 | $2,510 | $11,499 | $29,864 |
| Total | $15,527 | $11,084 | $62,369 | $359,066 |
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