Production year
1933
© Fonds historique / CNRS Images
19000001_0934
Essai de résistance d'une poutre armée en acier Isteg, sur le site de l'Office national des recherches scientifiques et industrielles et des inventions (ONRSII) à Bellevue, Meudon, le 14 juin 1933. Cet acier permit de renforcer de 60% la résistance de rupture des poutres testées. Plus flexibles, elles sont aussi plus résistantes aux chocs.
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1933
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