楼主: 784928942
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蜗轮铜材料的,蜗杆45钢,蜗杆齿部应该没有必要淬硬了吧? |
发表于 2013-1-23 13:42:37
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发表于 2013-1-24 23:48:00
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发表于 2013-1-25 09:20:09
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发表于 2013-1-25 13:05:58
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