Home / Standards / GB/T 6848-1986 GB/T 6848-1986 Abolished Dimensions of the cores for motion-picture film rolls 电影胶片片卷片芯尺寸 Standard Type GBT ICS 37.060.20 CCS G81 Status 废止 Issue Date 1986-09-06 Implementation 1987-08-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A