全站 | 2022-03-11 | |||
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2039| 10
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[求助] 有做过强带(50CrVA,65Mn热处理至HRC38-42)冲模的吗? |
发表于 2009-8-20 11:43:50
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发表于 2009-8-22 16:33:51
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