
BS EN ISO 17636-1. Non-destructive testing of welds. Radiographic testing. Part 1 . X- and gamma-ray techniques with film
出版:British Standards Institution

專家解讀視頻
BS EN ISO 17636-1. Non-destructive testing of welds. Radiographic testing. Part 1 . X- and gamma-ray techniques with film
出版:British Standards Institution
專家解讀視頻