Home / Standards / GB/T 7393-1987 GB/T 7393-1987 Abolished Basic size of outlet of cable distribution systems intended for sound and television signals 声音和电视信号的电缆分配系统输出口基本尺寸 Standard Type GBT ICS 33.060.40 CCS M60 Status 废止 Issue Date 1987-03-12 Implementation 1987-11-01 Responsible Dept 广电总局 Drafting Unit 广电总局