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

專家解讀視頻
Steel Plate, Alloy, Structural, High Yield Strength (Hy-80 And Hy-100) - Revision J Amendment 1
出版:US Military Specs/Standards/Handbooks
專家解讀視頻