sigh007 发表于 2012-3-29 11:51:13

MIL-S-7108A (AMENDMENT 1)


                   MIL-S-7108A (AMENDMENT 1), MILITARY SPECIFICATION, STEEL, ALLOY (MANGANESE-SILICON-NICKEL), BARS AND FORGING STOCK (AIRCRAFT QUALITY)  (ASG) (30 AUG 1956) .         
         
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