標題: ASTM A 522-2001 低溫用鍛制或軋制含鎳8%和9%的合金鋼法蘭... [打印本頁] 作者: 兌水 時間: 2009-9-7 09:46 標題: ASTM A 522-2001 低溫用鍛制或軋制含鎳8%和9%的合金鋼法蘭... A522/A522M-01 Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service