FIELD: retain-security aids engineering. SUBSTANCE: plate body is made filled by high thermoconductive metal which is engaged with internal surface of plate body. Metal includes drill-resistant pieces dissipated arbitrary in volume, steel armature and steel racks welded on internal surface of body. Closing steel plate is welded to body side walls steel pillars and ribs. Armor plate is made reinforced and drilling-flame resistant. EFFECT: higher reliability of construction. 1 dwg
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Authors
Dates
1997-04-27—Published
1993-12-10—Filed