GB/Z 41287.2-2022通信用建筑物引入光缆第2部分:自承式架空用引入光缆标准
英文:Optical fibre telecommunication cables for use in premises cabling—Part 2:Optical fibre cables for self-supporting ae...
英文:Optical fibre telecommunication cables for use in premises cabling—Part 2:Optical fibre cables for self-supporting ae...