GB/T 19290.5-2009
發展中的電子設備構體機械結構模數序列.第2-3部分:分規范 25mm設備構體的接口協調尺寸.擴展的詳細規范.插箱、機箱、背板、面板和插件的尺寸
Modular order for the development of mechanical structures for electronic equipment practices.Part 2-3:Sectional specification.Interface co-ordination dimensions for the 25 mm equipment practice.Extended detail specification.Dimensions for subracks,chassi