Commodity20072008200920102011
Furnace burners for liquid fuel$28$296$580 $6,931
Furnace burners other than those for liquid fuel, incl. combination burners ...  $390$502$1,925
Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ...  $532$293 
Total$28$296$1,502$795$8,856