|
| Commodity | 2005 | 2006 | 2007 | 2009 | 2010 | 2011 |
| Furnace burners for liquid fuel | | | $4,050 | | | |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | $1,200 | $3,447 | | $159 | $2,421 | $598 |
| Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... | $3,040 | | $104 | $78 | | $37 |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $1,677 | | $4,107 | $1,159 | $1,198 | $1,077 |
| Total | $5,917 | $3,447 | $8,261 | $1,396 | $3,619 | $1,712 |
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