| http://www.w3.org/ns/prov#value | - Groove 356 is designed to receive a tapered sealing rib 394 formed on the side of the door assembly to form a very strong engaging fit between the door and door frame to resist explosions and to provide a substantially airtight and water-tight seal between the door and door frame to exclude smoke and other noxious fumes and water should the protective enclosure be immersed in water.
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