[美国标准] A646-A646M-06 Premium Quality Alloy Steel Blooms and Billets

发表于 2010-5-31 15:21:41 |Error| 显示全部楼层 |阅读模式

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A646-A646M-06 Standard Specification for Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings

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