30 - 32 - Engine Room R/B No.2 and Engine Room J/B No.2 Inner Circuit

30 - Engine Room R/B No.2 and Engine Room J/B No.2 Inner Circuit:

31 - Engine Room R/B No.2 and Engine Room J/B No.2 Inner Circuit:

32 - Engine Room R/B No.2 and Engine Room J/B No.2 Inner Circuit: