Insulating materials - Industrial rigid moulded laminated tubes and rods of rectangular and hexagonal cross-section based on thermosetting resins for electrical purposes -- Part 3-1: Specifications for individual materials - Tubes and rods of rectangular and hexagonal cross-section
绝缘材料电气用基于热固性树脂的矩形和六角截面工业硬质模压层压管和棒第3-1部分:单项材料规范矩形和六角截面管和棒