EN 61249-2-1-2005 印制板和其它互连结构用材料.第2-1部分:包覆或未包覆增强基材.酚醛纤维素纸覆铜层压板
Materials for printed boards and other interconnecting structures Part 2-1: Reinforced base materials, clad and unclad Phenolic cellulose paper reinforced laminated sheets, economic grade, copper clad