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[讨论] 筒体焊缝系数0.7,封头怎么取? |
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发表于 2016-9-30 15:57:58
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发表于 2016-10-2 00:11:17
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发表于 2016-10-2 05:57:39
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发表于 2018-6-26 07:44:48
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发表于 2018-6-26 07:45:39
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发表于 2018-6-26 08:03:45
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发表于 2018-6-26 08:04:49
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