Who can tell me what plugs them are ?

爬上枯藤

Near the rudder about 5 M . WE can see the suBDIvision line ，so it must be under the E/R and the steering gear room . But i couldn't understand the mark . what's “B” and “STCFW" meant ..
Hope your information .
THX！

Noah

I think “B” is "Bilge tank" and the “STCFW" is " Stern tube cooling fresh water tank"

xuesh

B 不清楚 但是 后面这个 楼上正解！因为要是bilge tank 的话 一般缩写为 B.W.，所以吃不准B 是什么。