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[求助] X100Q钢级钢管采用6GR焊评方法,直坡口侧熔合线冲击功低 |
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发表于 2016-7-13 13:10:00
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发表于 2016-7-13 13:12:31
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发表于 2016-7-13 20:18:14
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发表于 2016-7-14 12:17:15
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