Articles, products and parts of marine equipment: steel marine doors

Purpose: closure of internal and external openings on ships and watercraft, as well as to prevent the spread of fire and combustion products from the room or compartment with the fire centre to other rooms.
Types: 0-permeable (external and internal opening); I - water-gas-tight (external opening);
By degree of fire protection and resistance to smoke and flame penetration: without degree, fire-resistant class A-0, A-15, A-30; A-60; fire retardant type B-0; B-15; B-30.
Type: blind; with round porthole; with rectangular porthole.
Closing: lever; with individual closing.
Without sealing and without insulation; with sealing and without insulation; with sealing and with insulation.
Fastening method: welding
Climatic version of OM, category I according to GOST 15150: ambient temperature from minus 40? to plus 45?.
Main material: steel