sigh007 发表于 2012-3-31 17:41:25

MIL-S-5626C (AMENDMENT 1)


                   MIL-S-5626C (AMENDMENT 1), MILITARY SPECIFICATION: STEEL, CHROME-MOLYBDENUM (4140) BARS, RODS, AND FORGING STOCK (FOR AIRCRAFT APPLICATION) (07 JUL 1972) .         
         
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