
WELDING CONSUMABLES - COVERED ELECTRODES FOR MANUAL METAL ARC WELDING OF COPPER AND COPPER ALLOYS - CLASSIFICATION (ISO 17777:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
WELDING CONSUMABLES - COVERED ELECTRODES FOR MANUAL METAL ARC WELDING OF COPPER AND COPPER ALLOYS - CLASSIFICATION (ISO 17777:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻