DIN EN 1092-1:2008 pdf free.Flansche und ihre Verbindungen -Runde Flansche fur Rohre, Armaturen, Formsticke und Zubehorteile, nach PN bezeichnet - Teil 1: Stahlflansche. 5 General requirements 5.1 Materials 5.1.1 General Flanges and collars to be used in pressure equipment shall be manufactured from materials fulfilling the essential safety requirements of the Directive 97/23/EC. Materials specifications which meet the requirements for...
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