MIL-S-7493B (NOTICE 1)
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时间:2024-05-07 23:48:05
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MIL-S-7493B (NOTICE 1), MILITARY SPECIFICATION: STEEL BARS, ALLOY, CARBURIZING, 4615, 4617, & 4620, AIRCRAFT, QUALITY (31 MAY 1984) [S/S BY SAE-AMS6290, SAE-AMS6292 AND SAE-AMS6294].