| 摘要 |
A ring grinding tool suitable for use in grinding or polishing a workpiece, particularly having a curvature, is provided. The tool comprises at least one rubber-made supporting layer reinforced with a metal wire and having a surface adapted for mating and contacting a rotary wheel, at least one porous elastic layer provided on the supporting layer, at least one elastic protective layer made of a rubber sheet provided on the porous elastic layer and a plurality of flat abrasive pieces provided on the elastic protective layer.
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