3489| 10
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求助:直徑20壁厚3的無縫鋼管垂直焊接,要求密封 |
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點評
φ12的焊過
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點評
T型
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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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