| 摘要 |
A blind bottom rail having a labor-saving function comprises a first rail, a second rail and several force-bearing devices with a pulley. Two sides of the first and second rails correspond to each other to let the first rail be fixed in the second rail. Two supporting portions are disposed in the first rail to form a receiving groove. Several through holes are formed at the bottom of the receiving groove. The force-bearing devices respectively correspond to the through holes and are fixed in the receiving groove through the supporting portions. The blind bottom rail can facilitate assembly and give a labor-saving function to the blind.
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