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Advection evaporative core system, the evaporative core used in air conditioning system has been gradually replaced by thinner, lighter, more material saving, higher heat exchange efficiency, compact structure, better hydrophilic treatment and drainage, higher corrosion resistance, more large-scale and efficient production of parallel flow heat exchanger; In 2012, the company introduced a full set of Japan KYK automatic 46m parallel flow heat exchanger brazing furnace, developed standard wave height, wave distance, different sizes of products.