|
| Commodity | 2005 | 2006 | 2007 | 2009 | 2010 |
| Furnace burners for liquid fuel | $447 | $13,546 | | $46,143 | |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | $3,441 | $20,928 | $347,878 | | |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $5,158 | $135,696 | | $213 | $314 |
| Total | $9,046 | $170,170 | $347,878 | $46,356 | $314 |
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