Home / Standards / GB/T 7553-1987 GB/T 7553-1987 Abolished 35mm Camera test chart target 35mm摄影机画面测试版 Standard Type GBT ICS 37.040 CCS N42 Status 废止 Issue Date 1987-03-25 Implementation 1988-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A