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

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