
Steel Tubes - Welded Unalloyed Steel Tubes Of Diameters 168.3 To 1 220 Mm Used At Medium Elevated Temperatures - Dimensions - Technical Delivery Conditions
出版:Association Francaise de Normalisation

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Steel Tubes - Welded Unalloyed Steel Tubes Of Diameters 168.3 To 1 220 Mm Used At Medium Elevated Temperatures - Dimensions - Technical Delivery Conditions
出版:Association Francaise de Normalisation
专家解读视频