COMBINATION FOR SEA CHEST HOLE OF VESSEL

摘要

PURPOSE: An air discharge hole of a ship which combined with a seawater drain hole and an air discharge hole is provided to enable a user to seal a seawater drain hole and an air outlet by inserting a plug in a protrusion. CONSTITUTION: An air discharge hole of a ship comprises a hole for discharging air or seawater at a C-chest of a ship. A hole assembly comprises a projection(20). The projection is combined in the edge of the hole while having a predetermined length. The outer circumference of the projection is combined with the holder of ring type.