| 摘要 |
An abrasive abrading a grinding device ( 10 ) having a housing ( 12 ) for moving over a concrete surface. The housing has depending abrasion elements ( 14 ) with a substrate layer ( 30 ) and a backing layer ( 32 ) mounted to a support bracket ( 34 ) that in turn is affixed to the housing. The substrate layer ( 30 ) has a front surface ( 44 ) with a distal section ( 40 ) having abrasive particles ( 42 ) brazed thereon with brazing material ( 46 ).
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