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ISO 657-1:1989 Hot-rolled steel sections - Part 1: Equal-leg angles - Dimensions
standard by International Organization for Standardization, 08/01/1989
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This first edition as an International Standard constitues a technical revision of ISO Recommendation R 657-1:1968. ISO 657 consists of 21 parts integrating any shapes of sections. ISO 657-1 specifies dimensions of hot-rolled equal-leg angles.