兑水 发表于 2009-9-9 08:08:08

ASTM A 774-2006 低温和中温一般腐蚀情况下用的焊接锻制...

A774/A774M-02 Standard Specification for As-Welded Wrought Austenitic Stainless Steel Fittings for General Corrosive Service at Low and Moderate Temperatures
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