|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Furnace burners for liquid fuel | $36,065 | $43,671 | $85,765 | $58,281 |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | $23,672 | $47,091 | $70,755 | $146,579 |
| Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... | $501 | $7,121 | $101,136 | $102,498 |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $162,016 | $106,135 | $62,227 | $64,396 |
| Total | $222,254 | $204,018 | $319,883 | $371,754 |
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