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Industrial grinding or roughening disc has peripheral notches at regular intervals
Industrial grinding or roughening disc has peripheral notches at regular intervals
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机译:工业研磨或粗糙化圆盘有规律的周边缺口
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摘要
An industrial grinding or roughening disc has an essentially circular planform with inner an outer (12) zones. The outer periphery has three trapezoidal notches (22) at mid-point intervals of 120.
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