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2390| 11
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[求助] 等径三通两端刚打底焊好,三通本体出现了贯穿裂纹 |
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发表于 2019-5-17 21:59:02
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发表于 2019-5-17 21:59:02
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发表于 2019-5-17 21:59:02
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