
Graphical Representation Of Welds, Soldering And Brazing Joints - Welding Positions, Slope, Rotation, Directives Of Welding Positions On The Pipe (examples)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Graphical Representation Of Welds, Soldering And Brazing Joints - Welding Positions, Slope, Rotation, Directives Of Welding Positions On The Pipe (examples)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频