| 摘要 |
A blind which includes: a rectangular frame; windows fit on the front and rear surfaces of the frame; a slat part embedded in between the windows mounted on the front and rear surfaces of the frame; an upper movable part and drum parts mounted on a back headrail half and a front headrail half of the upper portion of the frame to control the slat part; a side movable part inserted into a side guiderail of a side of the frame; and pull cords connected to the slat part, the drum parts, the side movable part, and corner keys for controlling opening and closing of the blind.
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