標題: ASTM B 891-1998 裝整體散熱片的無縫和焊接鈦鈦合金冷凝器... [打印本頁] 作者: 兌水 時間: 2009-9-15 14:06 標題: ASTM B 891-1998 裝整體散熱片的無縫和焊接鈦鈦合金冷凝器... B891-98(2004) Standard Specification for Seamless and Welded Titanium and Titanium Alloy Condenser and Heat Exchanger Tubes With Integral Fins