5671| 32
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供應(yīng)商說(shuō)螺牙是M24.8*1.0的,我能信不 |
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點(diǎn)評(píng)
確定這貨學(xué)過(guò)機(jī)械課程嗎?連螺紋最基本的概念都沒(méi)有。
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點(diǎn)評(píng)
他那個(gè)是標(biāo)準(zhǔn)件,要固定在我的加工件上,
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點(diǎn)評(píng)
哈哈
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