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[刀具设计] 直齿伞齿轮刨齿刀 |
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发表于 2019-7-7 22:37
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不知道先生的计量室精确测量是指什么。刀具***和检验如果只是用角度尺等,不客气的说,太粗糙啦
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发表于 2020-1-21 15:11
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