ASTM A213/A213M-09a Standard Specification for Seamless Ferritic and Austenitic

  leunghb ·  2009-12-12 12:38  ·  50541 次点击
ASTMA213/A213M-09aStandardSpecificationforSeamlessFerriticandAusteniticAlloy-SteelBoiler,Superheater,andHeat-ExchangerTubes
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pby1209  2010-10-06 01:18
正需要呢,2金币啊……

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