Home / Standards / GB/T 14220-1993 GB/T 14220-1993 Abolished Audio-visual video and television equipment and systems--Audio cassette systems 视听、视频和电视设备及系统音频盒式系统 Standard Type GBT ICS 33.160 CCS M71 Status 废止 Issue Date 1993-03-06 Implementation 1993-10-01 Responsible Dept 工业和信息化部（电子） Drafting Unit N/A