BS EN 61212-3-3:2006
电工用工业刚性圆热固树脂层压管和棒材.第3部分:各种材料规范.圆层压压制杆
Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - Part 3: Specifications for individual materials - Sheet 3: Round laminated moulded rods