標(biāo)題: ASTM B 547-2002 鋁及鋁合金成形并用電弧焊焊接的圓管技術(shù)規(guī)范 [打印本頁] 作者: 兌水 時間: 2009-9-13 08:10 標(biāo)題: ASTM B 547-2002 鋁及鋁合金成形并用電弧焊焊接的圓管技術(shù)規(guī)范 B547/B547M-02 Standard Specification for Aluminum and Aluminum-Alloy Formed and Arc-Welded Round Tube