sigh007 发表于 2012-3-29 11:52:35

MIL-S-6709A


                   MIL-S-6709A, MILITARY SPECIFICATION, STEEL, CHROME-MOLYBDENUM-ALUMINUM; BARS, RODS, BILLETS AND FORGING STOCK (FOR NITRIDING) (AIRCRAFT QUALITY) (24 MAR 1965) ., This specification covers steel of aircraft quality for use in the manufacture of nitrided parts.         
         
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