|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Furnace burners for liquid fuel | $2,230 | $917 | $149 | $1,080 | | $71 | |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | $896 | $82 | $269 | $19 | $5,227 | $739 | $5,943 |
| Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... | | | | $149 | | $1,854 | |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $3,081 | $1,349 | $9,069 | $1,598 | | | |
| Total | $6,207 | $2,348 | $9,487 | $2,846 | $5,227 | $2,664 | $5,943 |
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