Naming rule of shielded facility filter

Instruction:
Filter Category:
GPF-Power line filter
GSF-Signal Filter

Stages of Filter:
A-Single stage filter
C-Three stages filter

Design Version:
01-common-mode
11-differential-mode
31-input lid open& common-mode
32-input lid open& differential-mode
61-input lid open& common-mode& spray-paint
62-input lid open& differential-mode&spray-paint
71-input output lid open& differential -mode
72-input output lid open& common -mode