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checklist for qa calculations, design drawings
checklist for qa calculations, design & drawings
i have added a faq titled
checklists for the quality assurance of calculations, design and drawing production fff">
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借用达朗贝尔的名言：前进吧，你会得到信心!
[url="http://www.dimcax.com"]几何尺寸与公差标准[/url]
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