楼主: 帅之千娇百媚
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机架上焊接20mm厚钢板然后龙门铣 |
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发表于 2019-1-9 08:03:22
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发表于 2019-1-9 08:44:07
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点评
退火后多少
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发表于 2019-1-9 08:58:01
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