Class 011
Environmental Control Instrument Products lighting heating cooling cooking
Heat exchangers (not parts of machines); Heat exchangers for central heating purposes; Heat exchangers for the removal of condensate; Heat exchangers for the removal of exhaust gases; Heat exchangers for the removal of flue gases; Heat exchangers for the temperature control of drinks being dispensed; Heat exchangers for transferring heat between fluid streams; Shell heat exchangers; Brazed heat exchangers; All welded plate and shell
Gaskets for heat exchangers
Class 037
Construction and Repair Services
Heat exchangers repairs and service; Heat exchangers installation