Home / Standards / GB/T 17341-1998 GB/T 17341-1998 Active Optics and optical instruments--Focimeters 光学和光学仪器 焦度计 Standard Type GBT ICS 17.180.30 CCS N34 Status 现行 Issue Date 1998-05-05 Implementation 1998-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A