ASTM A 389/A 389M-03a Standard Specification for Steel Castings, Alloy, Speciall
ASTM A 389/A 389M-03a Standard Specification for Steel Castings, Alloy, Specially Heat-Treated, for Pressure-Containing Parts, Suitable for High-Temperature ServiceASTM A 389/A 389M-03a 适合高温受压部件用经特殊热处理的合金钢铸件的标准规范
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