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[YS/T 437-2009] 铝合金型材截面几何参数算法及计算机程序要求[已作废]
发布时间：2009-12-04
实施时间：2010-06-01
本标准规定了铝合金型材截面几何参数的符号、计算方法及计算机程序的要求。本标准适用于铝合金型材截面几何..
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[YS/T 437-2000] 铝型材截面几何参数算法及计算机程序要求[已作废]
发布时间：2000-10-25
实施时间：2001-03-01
本标准规定了铝合金型材截面几何参数的术语、符号、计算方法及计算机程序要求。本标准适用于建筑等行业用铝..
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