NF C26-145-3-8*NF EN 60674-3-8:2012 电工用塑料薄膜规格 第3部分:单项材料规范 活页8:电气绝缘用平衡双周定向聚萘二甲酸乙二醇酯(PEN)薄膜
Plastic films for electrical purposes - Part 3 : specifications for individual materials - Sheet 8 : balanced biaxially oriented polyethylene naphthalate (PEN) films used for electrical insulation