BS EN 60893-3-7:2004 绝缘材料.电工用热固性树脂基工业硬质层压薄板.各种材料规范.对聚酰亚胺树脂基刚性层压薄板的要求
Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Specifications for individual materials - Requirements for rigid laminated sheets based on polymide resins