GB/T 19520.22-2023
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3-110部分:智慧房屋用住宅机架和机柜
Mechanical Structure of Electrical and Electronic Equipment 482.6 mm (19 in) Series Mechanical Structure Dimensions Part 3-110: Residential Racks and Cabinets for Smart Homes
GBT19520.22-2023, GB19520.22-2023