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Unit for sealing window and door openings in a building wall against flood-water entry, comprises a flat aluminum frame and a stiffened aluminum panel boltable to the frame
Unit for sealing window and door openings in a building wall against flood-water entry, comprises a flat aluminum frame and a stiffened aluminum panel boltable to the frame
The unit for sealing window and door openings in a building wall against floodwater entry comprises a surrounding flat aluminum frame attached permanently to the building wall and a stiffened aluminum panel boltable to the frame. Both the frame and the panel are provided with special seals.
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