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[English] back bead 与back weld pass |
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发表于 2013-11-11 20:28:59
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发表于 2013-11-11 21:14:30
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发表于 2013-11-11 21:34:57
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发表于 2013-11-11 22:59:14
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发表于 2013-11-12 03:25:24
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发表于 2013-11-12 03:31:14
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