论坛 › 美国标准 › ASTM B 639-2002 高温用沉积硬化钴合金(UNS R30155 and UNS R30816)...
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发表于 2009-9-13 19:29:12
ASTM B 639-2002 高温用沉积硬化钴合金(UNS R30155 and UNS R30816)...
B639-02 Standard Specification for Precipitation Hardening Cobalt-Containing Alloys (UNS R30155 and UNS R30816) Rod, Bar, Forgings, and Forging Stock for High-Temperature Service