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正在維修的設(shè)備,,不知道人家怎么裝配的,,也不知道該怎么拆 |
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點(diǎn)評(píng)
這啥意思,,是說沖壓么
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點(diǎn)評(píng)
銅套其實(shí)是滑動(dòng)軸承
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