A49-281

Steel tubes, tubular accessories, bends, tee, reduction for welding made from seamless tube with quality specifications. Dimensions. Technical delivery conditions.

La présente norme définit les accessoires à souder bout à bout, courbes, tés et réductions fabriqués à partir d'ébauches tubulaires sans soudure qui peuvent être utilisés pour la construction de canalisations ou appareils à pression fonctionnant dans les limites de températures prévues pour la nuance et la qualité d'acier.

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- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

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