|
| Commodity | 2005 | 2006 | 2008 | 2011 |
| Furnace burners for liquid fuel | $1,565 | $133,740 | $3,730 | |
| Furnace burners other than those for liquid fuel, incl. combination burners ... | $83,093 | $7,656 | $96 | $10 |
| Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... | | $350 | | |
| Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... | $1,295 | | | $11,072 |
| Total | $85,953 | $141,746 | $3,826 | $11,082 |
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