3738| 16
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這表面裂紋是什么原因產(chǎn)生的? |
評(píng)分
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點(diǎn)評(píng)
難道是材料的問(wèn)題?還是加工刀痕,?
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點(diǎn)評(píng)
乙方:得加錢
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點(diǎn)評(píng)
是的
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