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标题:
AWS A2.4 Standard Symbols for Welding, Brazing, and Nondestructive Examination
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作者:
lauaurora
时间:
2016-10-12 19:50:35
标题:
AWS A2.4 Standard Symbols for Welding, Brazing, and Nondestructive Examination
美标焊接,钎焊以及无损检测符号表示,难得一见的好标准。[attach]111636[/attach]
[attach]111636[/attach]
作者:
admin
时间:
2016-10-13 16:37:02
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