GB/T 19520.20-2023电气和电子设备机械结构482.6mm(19in)系列机械结构尺寸第3-108部分:R型插箱和插件的尺寸国家标准
英文:Mechanical structures for electrical and electronic equipment—Dimensions of mechanical structures of the 482.6 mm (19...
英文:Mechanical structures for electrical and electronic equipment—Dimensions of mechanical structures of the 482.6 mm (19...