| 3. | Little size , logical frame , good optic and mechanical speciality . used for main lashup optical fiber , access the lead indoor optical fiber of the network , sound machine , data transmission , oas , instrument optical fiber 可以用于干线应急光缆接入网的引入光缆室内光缆音响设备数据传输智能大楼连接办公自动化机盘设备用光缆。 |