
Non-destructive Testing Of Welds - Radiographic Testing - Part 1: X- And Gamma Ray Techniques With Film
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Non-destructive Testing Of Welds - Radiographic Testing - Part 1: X- And Gamma Ray Techniques With Film
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻