| 摘要 |
<p>Electrode is solid or filled with steel wire or other supply metal for welding without, or under, or protective gas or under powder. The electrode is wavy. Pref. the wavelength is 1.3-2 times the wire dia, and is at least 5 mm. The electrode has an electrically conducting metal coating, or a non-metallic coating which can evaporate.</p> |
