| 摘要 |
A sectional door D having a plurality of panels ( 35 ), a first hinge leaf ( 44 ) formed on one edge of a panel and a second hinge leaf ( 42 ) formed on a second edge of the panel, wherein first and second hinge leaves on adjacent panels interrelate to form a hinge pivotally joining the panels, and a strengthening member ( 50 ) having a body portion ( 51 ) adapted to capture the hinge leaves and attachable to the panels near at least one of the first hinge leaf and the second hinge leaf.
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