Home / Standards / GB/T 7242-2010 GB/T 7242-2010 Active Centering error of lenses 透镜中心偏差 Standard Type GBT ICS 01.100.20;37.020 CCS N30 Status 现行 Issue Date 2010-12-01 Implementation 2011-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A