兑水 发表于 2009-9-7 19:14:08

ASTM A 592-2004 压力容器用经回火和淬火的高强度....

A592/A592M-89(1999) Standard Specification for High-Strength Quenched and Tempered Low-Alloy Steel Forged Fittings and Parts for Pressure Vessels
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