GB/T 13849.4-93
Polyolefin insulated polyolefin sheathed urban telecommunication cables—Part 4: Copper conductor, solid polyolefin insulated, self-supporting, moisture barrier polyethylene sheathed urban telecommunication cables
聚烯烃绝缘聚烯烃护套市内通信电缆 第四部分 铜芯、实心聚烯烃绝缘、自承式、档潮层聚乙烯护套市内通信电缆