
WELDING CONSUMABLES - COVERED ELECTRODES FOR MANUAL METAL ARC WELDING OF COPPER AND COPPER ALLOYS - CLASSIFICATION (ISO 17777:2016)
出版:British Standards Institution

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:British Standards Institution
專家解讀視頻