| 摘要 |
A finishing machine having a sandpaper positioning function includes a frame, a rotation wheel rotatably mounted on the frame, a sandpaper bonded on the rotation wheel, and an O-ring mounted on the rotation wheel and urged on the sandpaper. The rotation wheel has a periphery formed with an annular flange radially extending inward. The annular flange has an inner periphery formed with an annular groove. The O-ring is inserted into the annular groove of the rotation wheel and urged on the annular flange of the rotation wheel so as to position the sandpaper rigidly and stably.
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