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Φ6-7米級(jí)復(fù)合盾構(gòu)主軸軸承 |
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點(diǎn)評(píng)
應(yīng)該是其中的一個(gè)工藝或檢測過程。
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點(diǎn)評(píng)
請問徐工下屬哪個(gè)廠生產(chǎn)的?在南京合資的那家?
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點(diǎn)評(píng)
那是否現(xiàn)在十多米的盾構(gòu)主軸軸承是進(jìn)口的?
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