標(biāo)題: ASTM B 639-2002 高溫用沉積硬化鈷合金(UNS R30155 and UNS R30816)... [打印本頁(yè)] 作者: 兌水 時(shí)間: 2009-9-13 19:29 標(biāo)題: ASTM B 639-2002 高溫用沉積硬化鈷合金(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