Home / Standards / GB/T 39893-2021 GB/T 39893-2021 Active Handheld electro-optical low-vision device 手持式电子助视器 Standard Type GBT ICS 11.040.70 CCS C32 Status 现行 Issue Date 2021-03-09 Implementation 2021-03-09 Responsible Dept 民政部 Drafting Unit N/A