12109| 6
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同是二保焊,用焊條和焊絲哪個焊接出來的效果好? |
點評
不是二保焊,就是普通的手工電弧焊。弄錯了
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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