| http://www.w3.org/ns/prov#value | - In thelamination, the undercoating agent is heated by a roll or the like to be softened and the thickness thereof is averaged by a roll pressure, so that the surface of the copper foil can be smoothened.The component (a) used in this invention is a normally solid epoxy resin having a softening point of 45.degree. to 120.degree.
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