
Vitreous And Porcelain Enamels - Glass-Lined Apparatus For Process Plants - Part 4: Quality Requirements For Glass-Lined Flanged Steel Pipes And Flanged Steel Fittings (Iso 28721-4:2015)
出版:Asociacion Espanola de Normalizacion

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2015 [23/12/2015]2013 [29/10/2013]
Supersedes UNE EN 15711. (10/2013)
EN ISO 28721-4:2015 - Identical