FIELD: safe making. SUBSTANCE: several layers of steel reinforcing bars are laid preliminary and arbitrary inside steel case of the wall. The bars are welded to one another and to internal surface of the case. Wall case internals are filled with molten metal of high thermal conductivity. Prior to filling the wall case and internals are heated up to the temperature close to melt temperature. After cooling down to ambient temperature the wall case is covered with sheet steel. EFFECT: increased rigidity and strengthen of safe wall, increased resistivity to drilling and burning out.
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