BS EN 60893-3-3:2004+A1:2012
绝缘材料.电工用热固性树脂基工业硬质层压片.专用材料规格.三聚氰胺树脂基硬质层压片要求
Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Specifications for individual materials - Requirements for rigid laminated sheets based on melamine resins