Which of the following components provides a direct source of seawater for the fire main system?A.Rose boxB.Sea chestC.Sluice(闸式) valveD.Fire pump stuffing box
Which of the following components provides a direct source of seawater for the fire main system?
A.Rose box
B.Sea chest
C.Sluice(闸式) valve
D.Fire pump stuffing box
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