MIL-W-21157A
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时间:2024-05-13 06:07:23
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MIL-W-21157A, MILITARY SPECIFICATION: WELDMENT, STEEL, CARBON AND LOW ALLOY (YIELD STRENGTH 30,000 - 60,000 PS1 (26 OCT 1971)., This specification covers the requirements for steel weldments fabricated by metal electrode welding processes.
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