YD/T 1155-2001.Figure 8 Self - support Optical Fiber Cables for Outdoor Telecommunication. 1范围 YD/T ...
YD通讯标准
YD通讯标准
YD通讯标准
YD/T 1155-2011 通信用“8”字形自承式室外光缆
YD/T 1155-2011.Fig-8 self-support optical fiber cables for outdoor telecommunications. 1范围 YD/T 1155...