请教各位：机械图纸的变更单，需要包含哪些内容？ - 六西格玛绿带黑带考试|视频课程|考试题库一站式平台

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请教各位：机械图纸的变更单，需要包含哪些内容？

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八倍体小黑秦未验证用户
2023-07-28 13:58

原来是咋样，要变成什么样，变更原因，变更前的产品做什么标记，变更后的标记是什么。。。。变更单编制人，审核，批准。。。。

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