FIELD: heat exchange apparatus. SUBSTANCE: method consists in manufacture of fins from continuous metal foil bands, making of beaded holes for tubes, corrugation of band in width, making of recesses in bends of band which are engageable with pimples and fitting of fins on tubes; dimples and pimples are brought in contact with adjacent tubes and their fins. EFFECT: enhanced efficiency. 3 cl, 5 dwg
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