
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻