6487| 15
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請教,內(nèi)孔中的螺紋用什么設(shè)備加工? |
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點(diǎn)評(píng)
這種最好改圖紙的設(shè)計(jì),不然就改個(gè)小主軸用于鉆孔,手動(dòng)攻牙
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