
Qualification testing of welders for underwater welding Part 1: Hyperbaric wet welding (ISO 15618-1:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Qualification testing of welders for underwater welding Part 1: Hyperbaric wet welding (ISO 15618-1:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻