用于电子，电器设备内部连接线或一般电源线。
For internal wiring of electronic and electrical equipment or power supply cord.
用于1GHz以下闭路电视系统，共用天线系统（CATV/MATV）作为支线和用户线以及其它高频率机器的连接线或内部配线。
Applicable to close-circuit TV system below 1GHz, public antenna system (CATV/MATV) as branch line and owner line or equipment line or internal line for other high frequency machine.
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