GB/T 19520.12-2009
電子設備機械結構.482.6mm(19in)系列機械結構尺寸.第3-101部分:插箱及其插件
Mechanical structures for eletronic equipment.Dimensions of mechanical structures of the 482.6 mm(19 in) series.Part 3-101:Subracks and associated plug-in units
GBT19520.12-2009, GB19520.12-2009