聚烯烃绝缘聚烯烃护套市内通信电缆 第2部分:铜芯、实心或泡沫(带皮泡沫)聚烯烃绝缘、非填充式、挡潮层聚乙烯护套市内通信电缆
Local telecommunication cables with polyolefin insulation and polyolefin sheath--Part 2:Unfilled,moisture barrier polyethylene sheathed local telecommunication cables with copper conductors and solid or cellular polyolefin insulation