KS C IEC 61212-3-1:2015 电工用工业刚性圆热固树脂层压管和棒材 第3部分:专用材料规范 节1 圆层压轧制管
Insulating materials-Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes-Part 3:Specifications for individual materials-Sheet 1:Round laminated rolled tubes