FIELD: construction, particularly metal doors.
SUBSTANCE: metal door comprises leaf installed inside door case of box shape. The door case is fastened in door opening with anchors. Door case comprises U-shaped platband flushing with door case. U-shaped platband has flanges of different lengths. Inner flange facing door leaf has length exceeding that of outer flange.
EFFECT: increased reliability of door unit connection to wall.
4 cl, 4 dwg
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