兑水 发表于 2009-9-9 07:59:53

ASTM A 768-2005 涡轮机转子及轴用经真空处理的含铬12%的合...

A768-95(2001) Standard Specification for Vacuum-Treated 12% Chromium Alloy Steel Forgings for Turbine Rotors and Shafts
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