10974| 10
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焊接坡口深度和焊接高度對嗎? |
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點評
看成板了,道理是一樣的
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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