5686| 9
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焊接筋板的厚度有沒有哪個標準有規(guī)定的? |
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點評
是的。是的。我打錯字了
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點評
薄厚從多少開始分界呢?
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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