兑水 发表于 2009-9-6 15:18:42

ASTM A 353-2004 压力容器用经二次正火及回火处理的含9％镍...

A353/A353M-93(1999) Standard Specification for Pressure Vessel Plates, Alloy Steel, 9 Percent Nickel, Double-Normalized and Tempered
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