Home / Standards / GB/T 9047-1988 GB/T 9047-1988 Abolished Six-track magnetic sound records on 70mm motion-picture release prints--Locations and dimensions 70mm电影发行拷贝上六轨磁性声迹的位置和尺寸 Standard Type GBT ICS 37.060.20 CCS A15 Status 废止 Issue Date 1988-04-13 Implementation 1988-08-01 Responsible Dept 广电总局 Drafting Unit N/A