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一种阶梯钻变径位置切削刃的断屑结构

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First Author:Fuji Wang

Disigner of the Invention:赵猛,成德,jiazhenyuan,葛恩德,吴晓君,王泽刚

Application Number:CN201810984639.6

Authorization Date:2018-08-28

Authorization number:CN109128306A

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