[Class : 35] Retail, Wholesale And Marketing Services Connected With The Sale Of Heat Exchangers, Heaters, Evaporators, Coolers, Condensers, Boilers, Steam Vaporizers, Concentrators For Industrial Use, Steam Generators, Heat Regenerators, Cooling Apparatus, Heating Apparatus, Apparatus For Generating Steam, Ventilation Apparatus, Shell And Tube Heat Exchanger, Tube Bundle, Titanium Heat Exchanger, High Pressure Heat Exchangers, Falling Film Exchanger, Helical Baffle Exchanger, High Pressure Heater, Cooler, Surface Condenser, Double Pipe Exchanger, Hair Pin Exchanger, Boiler Feed Water Heater, Waste Heat Boiler, Liquefied Natural Gas Vaporizer, Low Fin Heat Exchanger, High Flux Heat Exchanger, Sulphur Condenser, Breech Lock Heat Exchanger, Pre Heater, Vacuum Pre Concentrator, Vacuum Ejector Condenser, Stabiliser Re Boiler, Steam Condenser, Rod Baffle Heat Exchanger, Plate And Shell Heat Exchanger, Pressure Vessel, Reactor, Column, Kettle Type Heat Exchanger, Thin Wall Bellow Exchanger And Single Pass Floating Head Exchanger