DIN EN 61249-3-4:1999-11 印刷板和其他互連結構的材料 第3-4部分:非增強基材(包層和非包層)的截面規范集
Materials for printed boards and other interconnecting structures - Part 3-4: Sectional specification set for unreinforced base materials, clad and unclad (intended for flexible printed boards); adhesive coated flexible polyimide film (IEC 61249-3-4:19...