sigh007 发表于 2012-3-27 00:25:25

MIL-S-8949


                   MIL-S-8949, MILITARY SPECIFICATION (ASG), STEEL BARS, PLATES, SHEETS, BILLETS, AND REFORGING STOCK TYPE D6AC (10 MAY 1965) ., This specification establishes the requirements for procuring vacuum melted Cr-Mo-V-Ni, type D6AC steel forged billets, reforging stock, bars, rods, plate, sheet, and strip         
         
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