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[求助] 自己用钢板卷的310S的烟气管道600℃会变成红色吗? |
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发表于 2020-10-8 13:59:24
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发表于 2020-10-8 13:59:24
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发表于 2020-10-8 13:59:24
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发表于 2020-10-8 13:59:24
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