IEC 60684-3-247:2019
柔性绝缘套管 - 第3部分:各种类型的套管规格 - 第247页:热收缩聚烯烃套管 双壁 不阻燃 中厚壁
Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded, thick and medium wall