16133| 35
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沒(méi)有標(biāo)注公差的尺寸需要加工嗎? |
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點(diǎn)評(píng)
對(duì),粗糙度符號(hào)上有數(shù)字的都是要加工的,就是要通過(guò)去除金屬獲得的表面質(zhì)量
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