GB/T 19290.2-2003
發展中的電子設備構體機械結構模數序列 第2部分;分規范 25mm設備構體的接口協調尺寸
Modular order for the development of mechanical structures for electronic equipment practices-Part 2: Sectional specification-Interface co-ordination dimensions for the 25mm equipment practice
GBT19290.2-2003, GB19290.2-2003