兑水 发表于 2009-9-9 09:06:59

ASTM A 815-2004 锻制铁素体、铁素体/奥氏体和马氏体不锈...

A815/A815M-04 Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
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