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预览新型高精度复合加工机床attachment maoguojin872009-10-2 11162 骆马湖铁匠2009-11-29 15:07
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预览钣金加工中折弯系数的探讨attachment jzxue2009-11-25 21446 kkaa1232009-11-27 09:23
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预览轴承国家标准attachment linmengxiao2009-11-23 31543 4575886602009-11-25 08:58
预览The Engineering Handbook 41-50attachment linmengxiao2009-11-24 61435 linmengxiao2009-11-25 07:50
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预览常用钢材的分类和用途attachment chenfeng2009-11-24 11204 李志武2009-11-24 16:14
预览轴承国家标准attachment linmengxiao2009-11-23 31387 见习生小王2009-11-24 08:20
预览The Engineering Handbookattachment linmengxiao2009-11-23 11085 linmengxiao2009-11-24 07:48
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预览The Engineering Handbook linmengxiao2009-11-23 11136 linmengxiao2009-11-23 23:32
预览卷取机设计的一些资料attachment zxmllm19672007-5-29 75436 骆马湖铁匠2009-11-23 19:20
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