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[求助] ASME SA-312中对于管子硬度的要求在哪 |
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发表于 2016-6-13 10:17:42
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发表于 2016-6-13 10:29:55
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发表于 2016-6-13 14:50:17
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发表于 2016-6-13 16:52:21
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发表于 2016-6-13 17:44:03
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点评 |
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