sigh007 发表于 2012-3-29 11:50:18

MIL-S-7720A (AMENDMENT 2)


                   MIL-S-7720A (AMENDMENT 2), MILITARY SPECIFICATION, STEEL, CORROSION,RESISTANT (18-8) BARS, WIRE AND FORGING STOCK (AIRCRAFT QUALITY) (26 JUL 1974) .         
         
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