標題: ASTM A 983-2005 中速柴油發動機用連續晶粒流向鍛制的碳素鋼... [打印本頁] 作者: 兌水 時間: 2009-9-10 19:25 標題: ASTM A 983-2005 中速柴油發動機用連續晶粒流向鍛制的碳素鋼... A983/A983M-04 Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines