DIN EN 61249-2-21:2004-06
印刷板和其他互連結構的材料 第2-21部分:增強基材 包層和非包層 具有規定可燃性的非鹵化環氧編織 E 玻璃增強層壓板
Materials for printed boards and other interconnecting structures - Part 2-21: Reinforced base materials, clad and unclad - Non-halogenated epoxide woven E-glass reinforced laminated sheets of defined flammability (vertical burning test), copper-clad (...