| 摘要 |
The present invention concerns a grinding wheel ( 1 ) including a circular wheel that rotates about a central axis and with a surface ( 2 ) to which edge parts of a number of sand paper items ( 3 ) are fastened, and that the surface ( 2 ) has increasing height inwards from a periphery ( 6 ) of the surface ( 2 ), and that the sand paper items ( 3 ) have approximately the same height and are mounted mainly perpendicularly to the surface ( 2 ) of the wheel and have approximately radial extension over the greater part of the radius of the surface ( 2 ).
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