China 'GB/T 19520.20-2023
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 19520.20-2023
Mechanical structure of electrical and electronic equipment 482.6 mm (19 in) series mechanical structural dimensions Part 3-108: Dimensions of R-type sub-boxes and plug-ins 电气和电子设备机械结构 482.6 mm(19 in)系列机械结构尺寸 第3-108部分:R型插箱和插件的尺寸
Issued Date:2023.11.27
Implemented Date:2024.6.1
Issued by:
The Standardization Administration of the People's Republic of China