14490| 20
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數(shù)控車床怎樣加工左旋螺紋,? |
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點(diǎn)評(píng)
自己找麻煩啊,切削還朝下,,那個(gè)是正牙行不,,應(yīng)該是反牙反轉(zhuǎn)然后用反刀正著放就成了
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