
Determination of copper content of steel and cast iron by the 2,2'-diquinolyl spectrophotometric method (ISO 4946:1984); german version EN 24946:1990
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Determination of copper content of steel and cast iron by the 2,2'-diquinolyl spectrophotometric method (ISO 4946:1984); german version EN 24946:1990
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻