Home / Standards / GB/T 27511-2011 GB/T 27511-2011 Active 35mm filmstrips - Specifications for double-frame and single-frame formats 35mm幻灯片 双画幅和单画幅规范 Standard Type GBT ICS 37.040.10 CCS N45 Status 现行 Issue Date 2011-10-31 Implementation 2012-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会