Amendment 1 - Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 3-5: Specifications for individual materials - Requirements for rigid laminated sheets based on polyester resins
修改件1.绝缘材料.电气用热固性树脂工业硬质层压板.第3-5部分:单项材料规范.聚酯树脂硬质层压板的要求