| 摘要 |
The invention relates to an abrasive sheet member (110, 210, 310) produced from the interstitial sheet material (106, 206, 306) between circular abrasive discs during converting operations. The sheet material includes at least three projecting ends (112) separated from each other by a boundary (116, 216, 316) having a radius of curvature with a center of curvature located outside the sheet member.
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