
Steel Castings, Alloy, High Yield Strength ((Hy-80 And Hy-100) - Revision D Amendment 1
出版:US Military Specs/Standards/Handbooks

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Steel Castings, Alloy, High Yield Strength ((Hy-80 And Hy-100) - Revision D Amendment 1
出版:US Military Specs/Standards/Handbooks
专家解读视频