PF

Heat exchangers not being parts of machines, namely, condensers, heater cores, radiators, water coils, evaporators, oil and gas coolers for residential and commercial air conditioners, dehumidifiers, and refrigeration systems; heat exchangers being parts of air conditioning systems for vehicles, namely, condensers and evaporators; parts for heating and air conditioning systems, namely, heater cores, radiators and oil and gas coolers for vehicles