156824 ⎘
Chimneys or flues Specific materials
Sub-classes:Effective discharge of exhaust from submerged combustion melters and methods
#2Effective discharge of exhaust from submerged combustion melters and methods
#3Combustion apparatus, method for combustion control, board, combustion control system and water heater
#4Abrasion resistant
#5High performance liner for power plant emissions systems
#6BIOFUEL APPLIANCE VENTING SYSTEM