| 摘要 |
A shutter having predetermined requisite strength of shutter framework ( 1 ) encompassing slatted-louver apertures ( 31 ) with slat-support guides ( 6 ). The shutter framework includes structural beams to which ends of slanted slats ( 5 ) are attached rigidly. Ends of slat-support guides ( 6 ) and ( 7 ) are affixed to the bottom and top of shutter spacers ( 4 ) and preferably welded periodically to sides of the shutter framework ( 1 ).
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