兑水 发表于 2009-9-6 07:40:42

ASTM A 297-1997 一般用耐热铬铁与镍铬铁合金钢铸件规格

A297/A297M-97(2003) Standard Specification for Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat Resistant, for General Application
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