Home / Standards / GB/T 40965-2021 GB/T 40965-2021 Active Measurement of retroreflection 回复反射的测量方法 Standard Type GBT ICS 43.040.20 CCS K70 Status 现行 Issue Date 2021-11-26 Implementation 2022-06-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A