兑水 发表于 2009-9-11 08:39:49

ASTM B 93-2005 砂型铸件、永久型模铸件和压模铸件用镁合金锭

B93/B93M-03 Standard Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings
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