Повучен
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.
ПОВУЧЕН
ISO 657-1:1989
95.99
Повучен
27. 4. 2026.
ОБЈАВЉЕН
ISO 657-1:2026