Guangdong Jielang Thermal Energy's high-frequency welded air heat exchanger has extensive applications in fields such as petrochemicals and power plants. Utilizing high-frequency welding technology, the finned tubes achieve a high-strength bond with the tube surface, ensuring superior heat transfer efficiency, thermal expansion characteristics, heat dissipation area, structural strength, thermal shock resistance, and service life. This type of heat exchanger is suitable for high-temperature flue gas heat recovery environments ranging from 200 to 600°C, offering a wide temperature adaptation range and high pressure-bearing capacity....