... Fin Heat Exchanger for Industry Machinery Features:1.Material:Aluminum.2.Style:Plate fin. 3.Process:Vacuum brazing and argon ... recovery in the field of air separation equipment,petrochemical industry,communication,transportation,nuclear power, aviation,medicine,food,beverage, ... of fin as the different heat exchangers’ demand.The common shape of fin as,straight,porous,serrated,louvered,corrugated ...