BS 639:1986被替代
Specification for covered carbon and carbon manganese steel electrodes for manual metal-arc welding
出版：British Standards Institution
专家解读视频
Electrode classification, dimensions, covering identification, initial tests, quality control, periodic check tests, packing, storage and marking. Appendices on characteristics of electrode coverings, methods of test and safety references.
© British Standards Institution 2013
ISO 2401:1972 - Equivalent
ISO 2560:2002 - Similar
ISO 544:2003 - Equivalent
ISO 547:1975 - Equivalent
