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关于EN 1092-1-2008 typ11 B1 突面带颈对焊 …
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关于EN 1092-1-2008 typ11 B1 突面带颈对焊 …
Website URL:
https://zhidao.baidu.com/question/165069919.html
Category:
Painting Calligraphy
关于EN 1092-1-2008 typ11 B1 突面带颈对焊法兰的颈部坡口的技术要求，附图 因为EN 1092-1-2008是德文的标准，在下看不懂，请高手赐教！急用！！！
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