Commodity200520062007200820092010
Furnace burners for liquid fuel $839$114 $68 
Furnace burners other than those for liquid fuel, incl. combination burners ...$101$15 $393  
Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ... $93   $44
Total$101$947$114$393$68$44