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ASTM A847/A847M-2011

具有增强耐大气腐蚀性能的冷成型焊接与无缝高强度低合金结构管标准规格

Standard Specification for Cold-Formed Welded and Seamless High-Strength,Low. Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance

实施日期: 2011-04-01

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