2453| 5
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螺紋表面粗糙度 |
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點(diǎn)評(píng)
那不貌似就是螺孔^_^,這類(lèi)如果規(guī)格就1、2種,傳統(tǒng)標(biāo)法nXM*加一個(gè)粗糙度也不是很費(fèi)事,多種規(guī)格還是所有螺孔(或者螺紋處)3.2的省事
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