| abstract |
And an object of the present invention is to provide an aluminum plate having good coating properties and pre-doping properties. In an aluminum plate having a plurality of through holes penetrating in the thickness direction, in which the average opening diameter of the through hole 1μm ~ 100μm, the density of the through holes of 50 / mm 2 ~, and 2000 / mm 2, the through-holes adjacent Is 300 mu m or less. |